<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2022 Workiva-->
<!--r:b172453e-20ff-4043-8ac0-dfdb556e2a9a,g:ca13741b-c55d-4294-96f6-6b5612dcf71e-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.bentley.com/role/ConsolidatedBalanceSheets" xlink:type="simple" xlink:href="bsy-20211231.xsd#ConsolidatedBalanceSheets"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/ConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_3fda29ae-41b7-4952-88d2-831b879f2522" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_cec85438-789f-4d0b-bff3-e5be246887c5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_3fda29ae-41b7-4952-88d2-831b879f2522" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_cec85438-789f-4d0b-bff3-e5be246887c5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_faf487c0-f3f1-40f7-8085-304ec1e89aeb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_3fda29ae-41b7-4952-88d2-831b879f2522" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_faf487c0-f3f1-40f7-8085-304ec1e89aeb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Investments_37ba5dd6-87a4-4d33-9b41-5e455b9c2869" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Investments"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_3fda29ae-41b7-4952-88d2-831b879f2522" xlink:to="loc_us-gaap_Investments_37ba5dd6-87a4-4d33-9b41-5e455b9c2869" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_d7bbff7a-18b4-4f79-8ffc-8573011ab125" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_3fda29ae-41b7-4952-88d2-831b879f2522" xlink:to="loc_us-gaap_AssetsCurrent_d7bbff7a-18b4-4f79-8ffc-8573011ab125" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_48b2e745-ad30-4ff1-855c-5d25f56a60c3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_3fda29ae-41b7-4952-88d2-831b879f2522" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_48b2e745-ad30-4ff1-855c-5d25f56a60c3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_310e00d9-890f-4cf2-8045-ee3edfee765e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_3fda29ae-41b7-4952-88d2-831b879f2522" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_310e00d9-890f-4cf2-8045-ee3edfee765e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_65bf82c1-0475-4d14-820e-819ae73ea5b3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_3fda29ae-41b7-4952-88d2-831b879f2522" xlink:to="loc_us-gaap_Goodwill_65bf82c1-0475-4d14-820e-819ae73ea5b3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_17e84d25-2128-473d-b999-c185d506047d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_3fda29ae-41b7-4952-88d2-831b879f2522" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_17e84d25-2128-473d-b999-c185d506047d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_1b2800ae-494e-4543-adce-8eaa4ec1ae4e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_7bc9e6da-1352-43e2-aabf-a60070fd7d51" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1b2800ae-494e-4543-adce-8eaa4ec1ae4e" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_7bc9e6da-1352-43e2-aabf-a60070fd7d51" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_e7c833ea-073c-4477-905f-f4b72928d24b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1b2800ae-494e-4543-adce-8eaa4ec1ae4e" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_e7c833ea-073c-4477-905f-f4b72928d24b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_206363d1-e9f8-4c0f-8922-97242de7fe2a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedIncomeTaxesCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1b2800ae-494e-4543-adce-8eaa4ec1ae4e" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_206363d1-e9f8-4c0f-8922-97242de7fe2a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_75e94714-ecfa-4d40-b7a1-4975f987e12e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1b2800ae-494e-4543-adce-8eaa4ec1ae4e" xlink:to="loc_us-gaap_AccountsPayableCurrent_75e94714-ecfa-4d40-b7a1-4975f987e12e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_244276e1-d830-4a44-8ba0-2b267744c991" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1b2800ae-494e-4543-adce-8eaa4ec1ae4e" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_244276e1-d830-4a44-8ba0-2b267744c991" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_1e605d28-2290-4d1a-824e-d344ed2f00ca" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1b2800ae-494e-4543-adce-8eaa4ec1ae4e" xlink:to="loc_us-gaap_LongTermDebtCurrent_1e605d28-2290-4d1a-824e-d344ed2f00ca" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_b3813bc1-bed4-4fee-8ba9-e9ee8cd2d72e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_9ab89b7f-8e90-483d-aed4-55344ded33b7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_b3813bc1-bed4-4fee-8ba9-e9ee8cd2d72e" xlink:to="loc_us-gaap_Liabilities_9ab89b7f-8e90-483d-aed4-55344ded33b7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_52898d92-7310-470d-8e61-855aeb12491b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_b3813bc1-bed4-4fee-8ba9-e9ee8cd2d72e" xlink:to="loc_us-gaap_StockholdersEquity_52898d92-7310-470d-8e61-855aeb12491b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_8d1394ac-86a9-4cd9-a690-a4320fbc4f6d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_b3813bc1-bed4-4fee-8ba9-e9ee8cd2d72e" xlink:to="loc_us-gaap_CommitmentsAndContingencies_8d1394ac-86a9-4cd9-a690-a4320fbc4f6d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_66538764-9439-4ea3-921c-12a518b25c0f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_bcec6ec1-3b87-44a1-83c5-e588fe8b4d27" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_66538764-9439-4ea3-921c-12a518b25c0f" xlink:to="loc_us-gaap_CommonStockValue_bcec6ec1-3b87-44a1-83c5-e588fe8b4d27" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_7a657da4-d573-447f-ae1b-cb3ddec56019" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_66538764-9439-4ea3-921c-12a518b25c0f" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_7a657da4-d573-447f-ae1b-cb3ddec56019" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_f00721ae-3bc1-4719-8f47-c53c7d700df5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_66538764-9439-4ea3-921c-12a518b25c0f" xlink:to="loc_us-gaap_AdditionalPaidInCapital_f00721ae-3bc1-4719-8f47-c53c7d700df5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_97f79a75-3972-4001-8025-56a9018a2c02" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_66538764-9439-4ea3-921c-12a518b25c0f" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_97f79a75-3972-4001-8025-56a9018a2c02" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_f223e4c8-1f0a-4067-9519-33608311dfce" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockValue"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_66538764-9439-4ea3-921c-12a518b25c0f" xlink:to="loc_us-gaap_PreferredStockValue_f223e4c8-1f0a-4067-9519-33608311dfce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_08d8c560-b15e-4c0a-8c9a-8bf3d650a411" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_01f89b52-6823-4f33-9319-6907fc5a3785" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_08d8c560-b15e-4c0a-8c9a-8bf3d650a411" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_01f89b52-6823-4f33-9319-6907fc5a3785" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableGrossCurrent_75f7fc65-cad6-486e-bb09-38493ad0581f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsReceivableGrossCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_08d8c560-b15e-4c0a-8c9a-8bf3d650a411" xlink:to="loc_us-gaap_AccountsReceivableGrossCurrent_75f7fc65-cad6-486e-bb09-38493ad0581f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_OtherPrepaidExpensesAndCurrentAssets_ab317c45-7735-4f6b-afdf-e2db38703433" xlink:href="bsy-20211231.xsd#bsy_OtherPrepaidExpensesAndCurrentAssets"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_08d8c560-b15e-4c0a-8c9a-8bf3d650a411" xlink:to="loc_bsy_OtherPrepaidExpensesAndCurrentAssets_ab317c45-7735-4f6b-afdf-e2db38703433" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidTaxes_5a1d5a4e-c21e-4ee4-bcf4-7bbcdd478e56" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PrepaidTaxes"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_08d8c560-b15e-4c0a-8c9a-8bf3d650a411" xlink:to="loc_us-gaap_PrepaidTaxes_5a1d5a4e-c21e-4ee4-bcf4-7bbcdd478e56" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_3d6e1538-2ae2-4889-802a-3aae25df0b23" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_08d8c560-b15e-4c0a-8c9a-8bf3d650a411" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_3d6e1538-2ae2-4889-802a-3aae25df0b23" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_c59ee8f3-efa3-4f8c-af90-c82a3cfe7ac6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_d3f5798d-3d38-46d6-a3e7-b30e2a1bcba8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c59ee8f3-efa3-4f8c-af90-c82a3cfe7ac6" xlink:to="loc_us-gaap_LiabilitiesCurrent_d3f5798d-3d38-46d6-a3e7-b30e2a1bcba8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_a0414abc-dd56-4e5c-868d-cde2497c736c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c59ee8f3-efa3-4f8c-af90-c82a3cfe7ac6" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_a0414abc-dd56-4e5c-868d-cde2497c736c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_8abc213d-4ed9-42cf-8982-a59900c68a00" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c59ee8f3-efa3-4f8c-af90-c82a3cfe7ac6" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_8abc213d-4ed9-42cf-8982-a59900c68a00" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_754eff98-115e-437d-aed5-1dbb7b7a83a1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerLiabilityNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c59ee8f3-efa3-4f8c-af90-c82a3cfe7ac6" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_754eff98-115e-437d-aed5-1dbb7b7a83a1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_1b73e440-eefb-4d40-8b38-db3614f92473" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c59ee8f3-efa3-4f8c-af90-c82a3cfe7ac6" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_1b73e440-eefb-4d40-8b38-db3614f92473" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxesNoncurrent_8fc89230-6cf0-4661-89df-17cfe970cf20" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedIncomeTaxesNoncurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c59ee8f3-efa3-4f8c-af90-c82a3cfe7ac6" xlink:to="loc_us-gaap_AccruedIncomeTaxesNoncurrent_8fc89230-6cf0-4661-89df-17cfe970cf20" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_30396c3d-48fe-4bbf-8fc6-2baada291d4d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c59ee8f3-efa3-4f8c-af90-c82a3cfe7ac6" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_30396c3d-48fe-4bbf-8fc6-2baada291d4d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent_f57bcae2-61a9-4555-90d2-9783e6bae949" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_c59ee8f3-efa3-4f8c-af90-c82a3cfe7ac6" xlink:to="loc_us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent_f57bcae2-61a9-4555-90d2-9783e6bae949" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/ConsolidatedStatementsofOperations" xlink:type="simple" xlink:href="bsy-20211231.xsd#ConsolidatedStatementsofOperations"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/ConsolidatedStatementsofOperations" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_42a74880-61e0-4515-9128-08b2b1aea8c2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_2a3d8eac-86ee-4d5a-aa06-26e9bb1795bb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GrossProfit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_42a74880-61e0-4515-9128-08b2b1aea8c2" xlink:to="loc_us-gaap_GrossProfit_2a3d8eac-86ee-4d5a-aa06-26e9bb1795bb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_e7e252bc-9c81-44cd-b52f-da90e4620a7d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingExpenses"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_42a74880-61e0-4515-9128-08b2b1aea8c2" xlink:to="loc_us-gaap_OperatingExpenses_e7e252bc-9c81-44cd-b52f-da90e4620a7d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_8dc3872f-6208-4846-86ba-34187b81f74c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_59dbab7e-50bf-4ce5-9151-0de48e18a45f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_8dc3872f-6208-4846-86ba-34187b81f74c" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_59dbab7e-50bf-4ce5-9151-0de48e18a45f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpense_3e2fcf43-5d36-4468-9f81-b143b176c8d4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SellingAndMarketingExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_8dc3872f-6208-4846-86ba-34187b81f74c" xlink:to="loc_us-gaap_SellingAndMarketingExpense_3e2fcf43-5d36-4468-9f81-b143b176c8d4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_f33b08a9-8849-4faf-a462-b1d5dd308770" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_8dc3872f-6208-4846-86ba-34187b81f74c" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_f33b08a9-8849-4faf-a462-b1d5dd308770" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_8ef986c6-ee3b-4d1e-8848-619008bcebdb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_8dc3872f-6208-4846-86ba-34187b81f74c" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_8ef986c6-ee3b-4d1e-8848-619008bcebdb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense_ce67298d-9d4f-4015-aa7b-0b22d0c86ee4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_8dc3872f-6208-4846-86ba-34187b81f74c" xlink:to="loc_us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense_ce67298d-9d4f-4015-aa7b-0b22d0c86ee4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfessionalFees_c4a080bc-a56c-4c72-85fe-a0b830296b6c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProfessionalFees"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_8dc3872f-6208-4846-86ba-34187b81f74c" xlink:to="loc_us-gaap_ProfessionalFees_c4a080bc-a56c-4c72-85fe-a0b830296b6c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_b7d16a0f-1cd5-451f-ac29-6d21f7926e59" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_e3470347-0c94-49f9-8ee9-ccb5baa7c4ad" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_b7d16a0f-1cd5-451f-ac29-6d21f7926e59" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_e3470347-0c94-49f9-8ee9-ccb5baa7c4ad" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_d9aa9087-8963-40b4-a065-521bafecb948" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_b7d16a0f-1cd5-451f-ac29-6d21f7926e59" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_d9aa9087-8963-40b4-a065-521bafecb948" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_282672ba-d36b-47c6-922b-ed9d19591a42" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_b7d16a0f-1cd5-451f-ac29-6d21f7926e59" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_282672ba-d36b-47c6-922b-ed9d19591a42" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_80f8f148-8fb9-43d0-86dd-712539d74763" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_27aeec84-95f9-4737-9713-190b555af590" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_80f8f148-8fb9-43d0-86dd-712539d74763" xlink:to="loc_us-gaap_OperatingIncomeLoss_27aeec84-95f9-4737-9713-190b555af590" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_4fbf3d81-ca63-478c-be84-cc15b03ae6aa" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_80f8f148-8fb9-43d0-86dd-712539d74763" xlink:to="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_4fbf3d81-ca63-478c-be84-cc15b03ae6aa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_80dc62a9-7e52-4b99-8813-dc0ba6aa0ee9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_80f8f148-8fb9-43d0-86dd-712539d74763" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_80dc62a9-7e52-4b99-8813-dc0ba6aa0ee9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_ca0ff718-d301-42a5-952e-465836fff8b3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GrossProfit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_c3e99b8b-964e-42f8-b5d9-26d0f9fd0737" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostOfRevenue"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_ca0ff718-d301-42a5-952e-465836fff8b3" xlink:to="loc_us-gaap_CostOfRevenue_c3e99b8b-964e-42f8-b5d9-26d0f9fd0737" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_3716ac70-fa6a-4a55-993b-d1d8c639c9fa" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_ca0ff718-d301-42a5-952e-465836fff8b3" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_3716ac70-fa6a-4a55-993b-d1d8c639c9fa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_98e3971b-091b-4c2a-a1e2-11c10b321b0e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic_a5985196-621c-43bf-8f26-ab39a8f1fe06" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_98e3971b-091b-4c2a-a1e2-11c10b321b0e" xlink:to="loc_us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic_a5985196-621c-43bf-8f26-ab39a8f1fe06" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_aa81c247-93ed-4a5f-8b06-89f4750ec3fb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_98e3971b-091b-4c2a-a1e2-11c10b321b0e" xlink:to="loc_us-gaap_NetIncomeLoss_aa81c247-93ed-4a5f-8b06-89f4750ec3fb" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/ConsolidatedStatementsofComprehensiveIncome" xlink:type="simple" xlink:href="bsy-20211231.xsd#ConsolidatedStatementsofComprehensiveIncome"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/ConsolidatedStatementsofComprehensiveIncome" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_4f710c1e-93e6-4684-a11b-cc46460a5d65" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_e572807d-393b-482d-a1b5-63afe0f8fb3c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_4f710c1e-93e6-4684-a11b-cc46460a5d65" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_e572807d-393b-482d-a1b5-63afe0f8fb3c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_d5ac4bb0-712b-46e0-ad4a-a4168f48a6d8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_4f710c1e-93e6-4684-a11b-cc46460a5d65" xlink:to="loc_us-gaap_NetIncomeLoss_d5ac4bb0-712b-46e0-ad4a-a4168f48a6d8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_92259ceb-11ba-4785-8d7d-1815c9199e42" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent_dfe01b2a-f921-4ab2-9237-cb4b9556e5bd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_92259ceb-11ba-4785-8d7d-1815c9199e42" xlink:to="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent_dfe01b2a-f921-4ab2-9237-cb4b9556e5bd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_de65f2b9-982e-401f-b335-26463c5e4a1d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_92259ceb-11ba-4785-8d7d-1815c9199e42" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_de65f2b9-982e-401f-b335-26463c5e4a1d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/ConsolidatedStatementsofCashFlows" xlink:type="simple" xlink:href="bsy-20211231.xsd#ConsolidatedStatementsofCashFlows"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/ConsolidatedStatementsofCashFlows" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fefa0fb6-3502-424b-93a1-31686b2ff6ac" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_c3c5b72f-a23b-44cc-a429-5626ba93f0da" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fefa0fb6-3502-424b-93a1-31686b2ff6ac" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_c3c5b72f-a23b-44cc-a429-5626ba93f0da" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_4d84710b-9ab9-4659-8eff-5031588c058a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fefa0fb6-3502-424b-93a1-31686b2ff6ac" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_4d84710b-9ab9-4659-8eff-5031588c058a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_ad67171b-8a8c-4f0e-8da2-e4d54fda2efa" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_fefa0fb6-3502-424b-93a1-31686b2ff6ac" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_ad67171b-8a8c-4f0e-8da2-e4d54fda2efa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_76a4d83a-78e3-4a9d-907e-6cdaece820f6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfSecuredDebt_c0a3b721-c29c-483b-9f2c-a19aad9755b0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RepaymentsOfSecuredDebt"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_76a4d83a-78e3-4a9d-907e-6cdaece820f6" xlink:to="loc_us-gaap_RepaymentsOfSecuredDebt_c0a3b721-c29c-483b-9f2c-a19aad9755b0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_54a6028c-da3b-4b57-afe9-50b905300709" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_76a4d83a-78e3-4a9d-907e-6cdaece820f6" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_54a6028c-da3b-4b57-afe9-50b905300709" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_00d82ea0-a4f0-4025-806d-883e5f0d2909" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_76a4d83a-78e3-4a9d-907e-6cdaece820f6" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_00d82ea0-a4f0-4025-806d-883e5f0d2909" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfStockIssuanceCosts_392af721-5cb9-4de5-83d7-1b855e25d28b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsOfStockIssuanceCosts"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_76a4d83a-78e3-4a9d-907e-6cdaece820f6" xlink:to="loc_us-gaap_PaymentsOfStockIssuanceCosts_392af721-5cb9-4de5-83d7-1b855e25d28b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromConvertibleDebt_68a59221-01a7-4adc-ad58-73d2c8e7e7c8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromConvertibleDebt"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_76a4d83a-78e3-4a9d-907e-6cdaece820f6" xlink:to="loc_us-gaap_ProceedsFromConvertibleDebt_68a59221-01a7-4adc-ad58-73d2c8e7e7c8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockPlans_6e6d3ea0-882f-4f9d-9af2-5a7c8bacf32e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromStockPlans"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_76a4d83a-78e3-4a9d-907e-6cdaece820f6" xlink:to="loc_us-gaap_ProceedsFromStockPlans_6e6d3ea0-882f-4f9d-9af2-5a7c8bacf32e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_PurchaseOfCappedCallOptions_a5bc41bd-9f36-400c-a822-8d1a030c4f22" xlink:href="bsy-20211231.xsd#bsy_PurchaseOfCappedCallOptions"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_76a4d83a-78e3-4a9d-907e-6cdaece820f6" xlink:to="loc_bsy_PurchaseOfCappedCallOptions_a5bc41bd-9f36-400c-a822-8d1a030c4f22" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLongTermLinesOfCredit_17d07775-bbee-4414-8424-76c65e927aad" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromLongTermLinesOfCredit"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_76a4d83a-78e3-4a9d-907e-6cdaece820f6" xlink:to="loc_us-gaap_ProceedsFromLongTermLinesOfCredit_17d07775-bbee-4414-8424-76c65e927aad" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfAssumedDebt_7fe13a74-8110-4e6d-9e7b-7b45fef1c079" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RepaymentsOfAssumedDebt"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_76a4d83a-78e3-4a9d-907e-6cdaece820f6" xlink:to="loc_us-gaap_RepaymentsOfAssumedDebt_7fe13a74-8110-4e6d-9e7b-7b45fef1c079" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermLinesOfCredit_a5923d06-cc8f-44a5-8439-16f32951552b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RepaymentsOfLongTermLinesOfCredit"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_76a4d83a-78e3-4a9d-907e-6cdaece820f6" xlink:to="loc_us-gaap_RepaymentsOfLongTermLinesOfCredit_a5923d06-cc8f-44a5-8439-16f32951552b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions_f11367b3-501d-4ec2-b65d-4e3a0efc8fd1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_76a4d83a-78e3-4a9d-907e-6cdaece820f6" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions_f11367b3-501d-4ec2-b65d-4e3a0efc8fd1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_FinanceLeasePaymentsFinancingActivities_f20c74a8-113f-4eaa-9a46-f61631febfd5" xlink:href="bsy-20211231.xsd#bsy_FinanceLeasePaymentsFinancingActivities"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_76a4d83a-78e3-4a9d-907e-6cdaece820f6" xlink:to="loc_bsy_FinanceLeasePaymentsFinancingActivities_f20c74a8-113f-4eaa-9a46-f61631febfd5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_bf7d3263-a6d5-45a9-beef-470040983abe" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts"/>
    <link:calculationArc order="13" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_76a4d83a-78e3-4a9d-907e-6cdaece820f6" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_bf7d3263-a6d5-45a9-beef-470040983abe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividends_5edb8f21-f296-475a-b03a-7504b203f74a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsOfDividends"/>
    <link:calculationArc order="14" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_76a4d83a-78e3-4a9d-907e-6cdaece820f6" xlink:to="loc_us-gaap_PaymentsOfDividends_5edb8f21-f296-475a-b03a-7504b203f74a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfSecuredDebt_63b0d660-229c-45d5-9ab3-40a80ccc5599" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOfSecuredDebt"/>
    <link:calculationArc order="15" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_76a4d83a-78e3-4a9d-907e-6cdaece820f6" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfSecuredDebt_63b0d660-229c-45d5-9ab3-40a80ccc5599" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_181bcd13-6ba0-4472-b2b6-75d073c36a7c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_2e2ec2f0-63b7-4470-8c09-7435a83dab5e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_181bcd13-6ba0-4472-b2b6-75d073c36a7c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_2e2ec2f0-63b7-4470-8c09-7435a83dab5e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_1343ce3f-57f7-4f0e-b995-66045a3b4f46" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_181bcd13-6ba0-4472-b2b6-75d073c36a7c" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_1343ce3f-57f7-4f0e-b995-66045a3b4f46" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_e0de48be-ae91-41b9-90f0-c0fbfae4db31" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_181bcd13-6ba0-4472-b2b6-75d073c36a7c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_e0de48be-ae91-41b9-90f0-c0fbfae4db31" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_080b2096-b498-4100-8e20-2f0744cac2cd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_181bcd13-6ba0-4472-b2b6-75d073c36a7c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_080b2096-b498-4100-8e20-2f0744cac2cd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_62db5ed8-058d-4f11-9c76-117aa51cd070" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_9d7b7d3c-14a6-4df6-85d3-7ead78ad6c27" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_62db5ed8-058d-4f11-9c76-117aa51cd070" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_9d7b7d3c-14a6-4df6-85d3-7ead78ad6c27" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_8c60af9f-4291-4d57-b4e8-fb40eb6dcc29" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_62db5ed8-058d-4f11-9c76-117aa51cd070" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_8c60af9f-4291-4d57-b4e8-fb40eb6dcc29" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_ba22afe7-18f2-4375-8626-b4bff8f9d00e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_62db5ed8-058d-4f11-9c76-117aa51cd070" xlink:to="loc_us-gaap_ShareBasedCompensation_ba22afe7-18f2-4375-8626-b4bff8f9d00e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_4518ae08-45ce-44bc-9518-7400399ce977" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_62db5ed8-058d-4f11-9c76-117aa51cd070" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_4518ae08-45ce-44bc-9518-7400399ce977" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_25da7b4a-4c97-4f05-99df-c44974bb02f1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_62db5ed8-058d-4f11-9c76-117aa51cd070" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_25da7b4a-4c97-4f05-99df-c44974bb02f1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_9ee5dda4-7710-4402-ad8e-a40165dced7b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_62db5ed8-058d-4f11-9c76-117aa51cd070" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_9ee5dda4-7710-4402-ad8e-a40165dced7b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_2d6cc8a6-590e-4705-85b5-8d576367fdac" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_62db5ed8-058d-4f11-9c76-117aa51cd070" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_2d6cc8a6-590e-4705-85b5-8d576367fdac" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_DeferredCompensationPlanNoncashExpense_257ea698-ffab-4111-91fa-8b14797398d0" xlink:href="bsy-20211231.xsd#bsy_DeferredCompensationPlanNoncashExpense"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_62db5ed8-058d-4f11-9c76-117aa51cd070" xlink:to="loc_bsy_DeferredCompensationPlanNoncashExpense_257ea698-ffab-4111-91fa-8b14797398d0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrealizedGainLossOnDerivatives_81e7ecb9-761b-42c8-b398-58cb8c86403a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_UnrealizedGainLossOnDerivatives"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_62db5ed8-058d-4f11-9c76-117aa51cd070" xlink:to="loc_us-gaap_UnrealizedGainLossOnDerivatives_81e7ecb9-761b-42c8-b398-58cb8c86403a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_6d2d38d3-c602-4e87-a8aa-f6884bc9f8ca" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_62db5ed8-058d-4f11-9c76-117aa51cd070" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_6d2d38d3-c602-4e87-a8aa-f6884bc9f8ca" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_2f4f5c60-93ba-4ee0-9664-36f60571e619" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AmortizationOfFinancingCosts"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_62db5ed8-058d-4f11-9c76-117aa51cd070" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_2f4f5c60-93ba-4ee0-9664-36f60571e619" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_532827e6-d2bd-4101-a875-8b7af979705c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_62db5ed8-058d-4f11-9c76-117aa51cd070" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_532827e6-d2bd-4101-a875-8b7af979705c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_6dc09cf4-7d22-4b2b-9256-c15ff049f6d9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="13" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_62db5ed8-058d-4f11-9c76-117aa51cd070" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_6dc09cf4-7d22-4b2b-9256-c15ff049f6d9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_4c3220ed-be44-4991-b569-2d76b5b08231" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_62db5ed8-058d-4f11-9c76-117aa51cd070" xlink:to="loc_us-gaap_NetIncomeLoss_4c3220ed-be44-4991-b569-2d76b5b08231" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_dc5b03f1-a300-4ffd-8e78-4edec98e0686" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="15" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_62db5ed8-058d-4f11-9c76-117aa51cd070" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_dc5b03f1-a300-4ffd-8e78-4edec98e0686" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_a2ceffb2-db99-4bf3-8159-dcec3bb20622" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts"/>
    <link:calculationArc order="16" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_62db5ed8-058d-4f11-9c76-117aa51cd070" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_a2ceffb2-db99-4bf3-8159-dcec3bb20622" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/AcquisitionsScheduleofCashPaidandAcquiredforAcquisitionsDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#AcquisitionsScheduleofCashPaidandAcquiredforAcquisitionsDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/AcquisitionsScheduleofCashPaidandAcquiredforAcquisitionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_cec21d5b-56f0-4076-8e46-68e0ab893dd6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_e912d95b-9dc6-4f7a-a402-3160e7009e5c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_cec21d5b-56f0-4076-8e46-68e0ab893dd6" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_e912d95b-9dc6-4f7a-a402-3160e7009e5c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAcquiredFromAcquisition_1c58c818-3b76-4771-945f-0dc8d6942d7e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAcquiredFromAcquisition"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_cec21d5b-56f0-4076-8e46-68e0ab893dd6" xlink:to="loc_us-gaap_CashAcquiredFromAcquisition_1c58c818-3b76-4771-945f-0dc8d6942d7e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/AcquisitionsScheduleofContingentandNonContingentConsiderationFairValueDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#AcquisitionsScheduleofContingentandNonContingentConsiderationFairValueDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/AcquisitionsScheduleofContingentandNonContingentConsiderationFairValueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_47baf30f-769e-4d5c-b33d-9499138b6b2e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiability"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent_c2383647-e5dc-42d2-8988-3177b54db2cd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_47baf30f-769e-4d5c-b33d-9499138b6b2e" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent_c2383647-e5dc-42d2-8988-3177b54db2cd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_b19e66c0-8016-4947-af17-499266b0a6b1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_47baf30f-769e-4d5c-b33d-9499138b6b2e" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_b19e66c0-8016-4947-af17-499266b0a6b1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_BusinessCombinationConsiderationPayable_7085dd67-88b8-4c2d-908c-997b1b6af3db" xlink:href="bsy-20211231.xsd#bsy_BusinessCombinationConsiderationPayable"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_BusinessCombinationConsiderationPayableCurrent_559d42d9-bf45-492c-9614-46cb9d975a39" xlink:href="bsy-20211231.xsd#bsy_BusinessCombinationConsiderationPayableCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_bsy_BusinessCombinationConsiderationPayable_7085dd67-88b8-4c2d-908c-997b1b6af3db" xlink:to="loc_bsy_BusinessCombinationConsiderationPayableCurrent_559d42d9-bf45-492c-9614-46cb9d975a39" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_BusinessCombinationConsiderationPayableNoncurrent_74d801f1-f061-42f5-9945-53965f49445d" xlink:href="bsy-20211231.xsd#bsy_BusinessCombinationConsiderationPayableNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_bsy_BusinessCombinationConsiderationPayable_7085dd67-88b8-4c2d-908c-997b1b6af3db" xlink:to="loc_bsy_BusinessCombinationConsiderationPayableNoncurrent_74d801f1-f061-42f5-9945-53965f49445d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/AcquisitionsScheduleofConsiderationandNetAssetsAcquiredDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#AcquisitionsScheduleofConsiderationandNetAssetsAcquiredDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/AcquisitionsScheduleofConsiderationandNetAssetsAcquiredDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_332b41b4-ab88-47ea-8f37-e9c5e325b8c4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets_a46ac35b-03e6-424d-b812-0765f876d058" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_332b41b4-ab88-47ea-8f37-e9c5e325b8c4" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets_a46ac35b-03e6-424d-b812-0765f876d058" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_085e3cd1-6f28-42eb-8cb9-56b6ec0ddfbd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_332b41b4-ab88-47ea-8f37-e9c5e325b8c4" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_085e3cd1-6f28-42eb-8cb9-56b6ec0ddfbd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssetsOperatingLeaseRightOfUseAsset_cb9a50cf-f9df-4495-8041-09b0c724d0b6" xlink:href="bsy-20211231.xsd#bsy_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssetsOperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_332b41b4-ab88-47ea-8f37-e9c5e325b8c4" xlink:to="loc_bsy_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssetsOperatingLeaseRightOfUseAsset_cb9a50cf-f9df-4495-8041-09b0c724d0b6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_37c684c3-613d-4994-9279-448bb6998f3a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_332b41b4-ab88-47ea-8f37-e9c5e325b8c4" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_37c684c3-613d-4994-9279-448bb6998f3a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_3144c358-1f68-4fa7-879c-1589e1eaec27" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_332b41b4-ab88-47ea-8f37-e9c5e325b8c4" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_3144c358-1f68-4fa7-879c-1589e1eaec27" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivablesAndOtherCurrentAssets_52c7e8a4-9a04-453a-8601-9831356949b9" xlink:href="bsy-20211231.xsd#bsy_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivablesAndOtherCurrentAssets"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_332b41b4-ab88-47ea-8f37-e9c5e325b8c4" xlink:to="loc_bsy_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivablesAndOtherCurrentAssets_52c7e8a4-9a04-453a-8601-9831356949b9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_2accd176-c35f-4fbb-b047-6ef8353dff9e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOperatingLeaseLiabilityNoncurrent_bb7402d2-23c8-4552-bbf0-1ac30dc22956" xlink:href="bsy-20211231.xsd#bsy_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_2accd176-c35f-4fbb-b047-6ef8353dff9e" xlink:to="loc_bsy_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOperatingLeaseLiabilityNoncurrent_bb7402d2-23c8-4552-bbf0-1ac30dc22956" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities_5584e4f5-f730-4ba1-96a2-ef71f7f94fbe" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_2accd176-c35f-4fbb-b047-6ef8353dff9e" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities_5584e4f5-f730-4ba1-96a2-ef71f7f94fbe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther_7b16dd67-b184-428b-9796-8640d9d425d0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_2accd176-c35f-4fbb-b047-6ef8353dff9e" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther_7b16dd67-b184-428b-9796-8640d9d425d0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue_3adc13c6-280b-498f-99d0-567f20cdfab8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_2accd176-c35f-4fbb-b047-6ef8353dff9e" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue_3adc13c6-280b-498f-99d0-567f20cdfab8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther_bcf08093-23c8-441d-98ad-5d8278b1dada" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_2accd176-c35f-4fbb-b047-6ef8353dff9e" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther_bcf08093-23c8-441d-98ad-5d8278b1dada" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_91c79a01-419b-48c6-b648-ac3b211cb267" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_a11756b9-29f1-47a5-8fc8-a38439a371a6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_91c79a01-419b-48c6-b648-ac3b211cb267" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_a11756b9-29f1-47a5-8fc8-a38439a371a6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_4b062746-ba23-48a9-836d-bb166b6b4c61" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_91c79a01-419b-48c6-b648-ac3b211cb267" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_4b062746-ba23-48a9-836d-bb166b6b4c61" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_5e48dd7e-488d-448a-89fc-86b9856142ad" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_3dfdcadc-a0d2-4d1c-a8a4-3d9c7bdbccc9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_5e48dd7e-488d-448a-89fc-86b9856142ad" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_3dfdcadc-a0d2-4d1c-a8a4-3d9c7bdbccc9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_f6de4017-6c60-467e-9a77-bc574b1a5cca" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_5e48dd7e-488d-448a-89fc-86b9856142ad" xlink:to="loc_us-gaap_Goodwill_f6de4017-6c60-467e-9a77-bc574b1a5cca" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/PropertyandEquipmentNetScheduleofPropertyandEquipmentNetDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#PropertyandEquipmentNetScheduleofPropertyandEquipmentNetDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/PropertyandEquipmentNetScheduleofPropertyandEquipmentNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_69818abb-b208-4b30-b85f-c380fd0e7a36" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_409bf5a9-9c1b-408b-ba98-18e0b6ee1866" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_69818abb-b208-4b30-b85f-c380fd0e7a36" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_409bf5a9-9c1b-408b-ba98-18e0b6ee1866" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_2410caca-124b-487f-87d6-f4d9bcae4ba6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_69818abb-b208-4b30-b85f-c380fd0e7a36" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_2410caca-124b-487f-87d6-f4d9bcae4ba6" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsOtherthanGoodwillDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#GoodwillandOtherIntangibleAssetsIntangibleAssetsOtherthanGoodwillDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsOtherthanGoodwillDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_d844e1aa-4519-480c-a75c-c7a04cd5e4c6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_5c0ea265-f972-465e-bbee-a44192ae7377" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IntangibleAssetsGrossExcludingGoodwill"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_d844e1aa-4519-480c-a75c-c7a04cd5e4c6" xlink:to="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_5c0ea265-f972-465e-bbee-a44192ae7377" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_d6a2426a-c978-4dd4-8667-787c2ab370c9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_d844e1aa-4519-480c-a75c-c7a04cd5e4c6" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_d6a2426a-c978-4dd4-8667-787c2ab370c9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_658d1057-c395-4e28-b6b1-fdbd8cb3ce18" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IntangibleAssetsGrossExcludingGoodwill"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_b4f4dee9-d274-46bc-a148-f7ab183b765f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_658d1057-c395-4e28-b6b1-fdbd8cb3ce18" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_b4f4dee9-d274-46bc-a148-f7ab183b765f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_f4ba0989-60b5-4a48-b98d-cc7d800cfd78" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_658d1057-c395-4e28-b6b1-fdbd8cb3ce18" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_f4ba0989-60b5-4a48-b98d-cc7d800cfd78" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_1674ad87-3c2b-42d6-baa3-8992cfcda204" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_81779f70-83cd-4d81-b79e-d86f58696742" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_1674ad87-3c2b-42d6-baa3-8992cfcda204" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_81779f70-83cd-4d81-b79e-d86f58696742" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_7041ef43-8357-4cbb-9b9d-54a0efb6b9d9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_1674ad87-3c2b-42d6-baa3-8992cfcda204" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_7041ef43-8357-4cbb-9b9d-54a0efb6b9d9" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsOtherthanGoodwillDetails_1" xlink:type="simple" xlink:href="bsy-20211231.xsd#GoodwillandOtherIntangibleAssetsIntangibleAssetsOtherthanGoodwillDetails_1"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsOtherthanGoodwillDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_57f1bd2a-04c3-4c60-b287-a77358b04756" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_d223c597-6e4a-4164-8c7f-b0411da1ee5b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_57f1bd2a-04c3-4c60-b287-a77358b04756" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_d223c597-6e4a-4164-8c7f-b0411da1ee5b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_b9630753-d41a-4a3a-90dd-e9bc4ec0cd0f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_57f1bd2a-04c3-4c60-b287-a77358b04756" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_b9630753-d41a-4a3a-90dd-e9bc4ec0cd0f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/GoodwillandOtherIntangibleAssetsAggregateAmortizationExpenseDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#GoodwillandOtherIntangibleAssetsAggregateAmortizationExpenseDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/GoodwillandOtherIntangibleAssetsAggregateAmortizationExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_bsy_CostAmortizationAndAmortizationOfIntangibleAssets_b291980e-2f38-43f1-a677-3b3f9f52d9e3" xlink:href="bsy-20211231.xsd#bsy_CostAmortizationAndAmortizationOfIntangibleAssets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_e4529225-d633-4068-bcd0-15a8f826c13c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_bsy_CostAmortizationAndAmortizationOfIntangibleAssets_b291980e-2f38-43f1-a677-3b3f9f52d9e3" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_e4529225-d633-4068-bcd0-15a8f826c13c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSoldAmortization_8d40d17f-0dd6-44ac-8ce3-cbd92c6e2959" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostOfGoodsAndServicesSoldAmortization"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_bsy_CostAmortizationAndAmortizationOfIntangibleAssets_b291980e-2f38-43f1-a677-3b3f9f52d9e3" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSoldAmortization_8d40d17f-0dd6-44ac-8ce3-cbd92c6e2959" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/GoodwillandOtherIntangibleAssetsFutureAmortizationExpenseDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#GoodwillandOtherIntangibleAssetsFutureAmortizationExpenseDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/GoodwillandOtherIntangibleAssetsFutureAmortizationExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_2d6c1588-b09c-46a2-9c2a-8799ab824a03" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_fbcb0b3a-bc4b-41a2-9c24-76f6b1201926" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_2d6c1588-b09c-46a2-9c2a-8799ab824a03" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_fbcb0b3a-bc4b-41a2-9c24-76f6b1201926" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_3d148d42-331a-4aab-ac77-f9d08753d2d2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_2d6c1588-b09c-46a2-9c2a-8799ab824a03" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_3d148d42-331a-4aab-ac77-f9d08753d2d2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_69eb9f28-85ce-4923-adcf-b9c7dd942113" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_2d6c1588-b09c-46a2-9c2a-8799ab824a03" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_69eb9f28-85ce-4923-adcf-b9c7dd942113" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_db565f41-3f0c-423b-8aae-b9b54a4881fd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_2d6c1588-b09c-46a2-9c2a-8799ab824a03" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_db565f41-3f0c-423b-8aae-b9b54a4881fd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_7e0f5ccf-0397-4e52-8fad-fee95097b749" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_2d6c1588-b09c-46a2-9c2a-8799ab824a03" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_7e0f5ccf-0397-4e52-8fad-fee95097b749" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_b8ab51c4-7ceb-4645-ae1f-7de567cc011f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_2d6c1588-b09c-46a2-9c2a-8799ab824a03" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_b8ab51c4-7ceb-4645-ae1f-7de567cc011f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/InvestmentsScheduleofInvestmentsDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#InvestmentsScheduleofInvestmentsDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/InvestmentsScheduleofInvestmentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Investments_cdc6ed2e-c2e7-4280-b954-51fbc1e1a9c2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Investments"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_9251e3fa-b3a0-4f18-bf1c-310640b1e1a3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Investments_cdc6ed2e-c2e7-4280-b954-51fbc1e1a9c2" xlink:to="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_9251e3fa-b3a0-4f18-bf1c-310640b1e1a3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestments_c3f95b34-45d1-4e4b-adbf-c31c10b04160" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityMethodInvestments"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Investments_cdc6ed2e-c2e7-4280-b954-51fbc1e1a9c2" xlink:to="loc_us-gaap_EquityMethodInvestments_c3f95b34-45d1-4e4b-adbf-c31c10b04160" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/LeasesLeaseCostDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#LeasesLeaseCostDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/LeasesLeaseCostDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost_146e2889-8266-44a2-ba92-9bd23094666f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LeaseCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableLeaseCost_65a12074-0c7b-4c1d-a2d0-aaa675376f24" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_VariableLeaseCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_146e2889-8266-44a2-ba92-9bd23094666f" xlink:to="loc_us-gaap_VariableLeaseCost_65a12074-0c7b-4c1d-a2d0-aaa675376f24" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermLeaseCost_1920a049-ca0e-491a-b101-c6064c1d5884" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShortTermLeaseCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_146e2889-8266-44a2-ba92-9bd23094666f" xlink:to="loc_us-gaap_ShortTermLeaseCost_1920a049-ca0e-491a-b101-c6064c1d5884" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_e8c992f1-59f5-4fcc-8f3b-401fa02b6690" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseCost"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_146e2889-8266-44a2-ba92-9bd23094666f" xlink:to="loc_us-gaap_OperatingLeaseCost_e8c992f1-59f5-4fcc-8f3b-401fa02b6690" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/LeasesMaturitiesofOperatingLeaseLiabilitiesDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#LeasesMaturitiesofOperatingLeaseLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/LeasesMaturitiesofOperatingLeaseLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_590967d5-4f5d-498b-b8ec-fb45f20d284a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_96eaf8ca-ba08-4f30-9559-14b02ceefe5d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_590967d5-4f5d-498b-b8ec-fb45f20d284a" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_96eaf8ca-ba08-4f30-9559-14b02ceefe5d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_ca0887bc-37c1-415b-9843-846774478626" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_590967d5-4f5d-498b-b8ec-fb45f20d284a" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_ca0887bc-37c1-415b-9843-846774478626" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_b82cca4e-ad0e-462e-8a42-2c654bd8e75a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_590967d5-4f5d-498b-b8ec-fb45f20d284a" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_b82cca4e-ad0e-462e-8a42-2c654bd8e75a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_5de05f24-a3a2-4d17-a997-55584c685294" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_590967d5-4f5d-498b-b8ec-fb45f20d284a" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_5de05f24-a3a2-4d17-a997-55584c685294" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_100a6d37-8d85-4d4f-b518-f4ca0554a144" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_590967d5-4f5d-498b-b8ec-fb45f20d284a" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_100a6d37-8d85-4d4f-b518-f4ca0554a144" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_bf42ad58-7157-4e1e-87bd-62ac753bc0dc" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_590967d5-4f5d-498b-b8ec-fb45f20d284a" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_bf42ad58-7157-4e1e-87bd-62ac753bc0dc" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/LeasesMaturitiesofOperatingLeaseLiabilitiesDetails_1" xlink:type="simple" xlink:href="bsy-20211231.xsd#LeasesMaturitiesofOperatingLeaseLiabilitiesDetails_1"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/LeasesMaturitiesofOperatingLeaseLiabilitiesDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_69e585d4-95c6-4940-9662-07a7981140b9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_4e760e2d-7a7f-48f2-b874-0b5dd4816888" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_69e585d4-95c6-4940-9662-07a7981140b9" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_4e760e2d-7a7f-48f2-b874-0b5dd4816888" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_aa1e5ec3-b91e-46c2-9603-cbcd024269a2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_69e585d4-95c6-4940-9662-07a7981140b9" xlink:to="loc_us-gaap_OperatingLeaseLiability_aa1e5ec3-b91e-46c2-9603-cbcd024269a2" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/LeasesSupplementalBalanceSheetDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#LeasesSupplementalBalanceSheetDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/LeasesSupplementalBalanceSheetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAsset_38995d6e-6cb7-413e-9566-d2d8cab8ef60" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseRightOfUseAsset"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization_e0c9c31b-a2fa-4987-a730-2f98cda8f2d7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseRightOfUseAsset_38995d6e-6cb7-413e-9566-d2d8cab8ef60" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization_e0c9c31b-a2fa-4987-a730-2f98cda8f2d7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetAccumulatedAmortization_270dc12b-257b-4e2d-bac0-f7c53d24bffe" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseRightOfUseAssetAccumulatedAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseRightOfUseAsset_38995d6e-6cb7-413e-9566-d2d8cab8ef60" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetAccumulatedAmortization_270dc12b-257b-4e2d-bac0-f7c53d24bffe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiability_fa961a88-b993-4f21-b84b-70f945e89773" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiability"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_4bd9b8b7-a7c3-432a-aca6-5af07c8ad0a2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiability_fa961a88-b993-4f21-b84b-70f945e89773" xlink:to="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_4bd9b8b7-a7c3-432a-aca6-5af07c8ad0a2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityCurrent_8f8dd766-be78-4900-95c7-5062d9e7a290" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiabilityCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiability_fa961a88-b993-4f21-b84b-70f945e89773" xlink:to="loc_us-gaap_FinanceLeaseLiabilityCurrent_8f8dd766-be78-4900-95c7-5062d9e7a290" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/AccrualsandOtherCurrentLiabilitiesDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#AccrualsandOtherCurrentLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/AccrualsandOtherCurrentLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_d372cb08-373b-45ac-a743-e8d349d68292" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_8cd879bf-4d4c-4ac6-ae1f-27afc7cf2430" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherAccruedLiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_d372cb08-373b-45ac-a743-e8d349d68292" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent_8cd879bf-4d4c-4ac6-ae1f-27afc7cf2430" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesAndExciseTaxPayableCurrent_25b650a4-40ba-46db-b807-a9313e06b61d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SalesAndExciseTaxPayableCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_d372cb08-373b-45ac-a743-e8d349d68292" xlink:to="loc_us-gaap_SalesAndExciseTaxPayableCurrent_25b650a4-40ba-46db-b807-a9313e06b61d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_04606a35-9011-4a0b-82d4-9ca41c45b55e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_d372cb08-373b-45ac-a743-e8d349d68292" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_04606a35-9011-4a0b-82d4-9ca41c45b55e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedBonusesCurrent_234b670f-6074-4949-85e5-266e0579dc2d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedBonusesCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_d372cb08-373b-45ac-a743-e8d349d68292" xlink:to="loc_us-gaap_AccruedBonusesCurrent_234b670f-6074-4949-85e5-266e0579dc2d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherEmployeeRelatedLiabilitiesCurrent_815609df-6726-439b-9fca-483acb0041b0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherEmployeeRelatedLiabilitiesCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_d372cb08-373b-45ac-a743-e8d349d68292" xlink:to="loc_us-gaap_OtherEmployeeRelatedLiabilitiesCurrent_815609df-6726-439b-9fca-483acb0041b0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_DueToCustomers_eadc69ea-be0b-4d9a-9b05-81819e48c526" xlink:href="bsy-20211231.xsd#bsy_DueToCustomers"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_d372cb08-373b-45ac-a743-e8d349d68292" xlink:to="loc_bsy_DueToCustomers_eadc69ea-be0b-4d9a-9b05-81819e48c526" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_BusinessCombinationConsiderationPayableCurrent_09c51ffc-19a0-4bec-922f-42256c3f80fb" xlink:href="bsy-20211231.xsd#bsy_BusinessCombinationConsiderationPayableCurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_d372cb08-373b-45ac-a743-e8d349d68292" xlink:to="loc_bsy_BusinessCombinationConsiderationPayableCurrent_09c51ffc-19a0-4bec-922f-42256c3f80fb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepositLiabilityCurrent_94d3d67b-a3a2-422f-8441-03f286b1b5fd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DepositLiabilityCurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_d372cb08-373b-45ac-a743-e8d349d68292" xlink:to="loc_us-gaap_DepositLiabilityCurrent_94d3d67b-a3a2-422f-8441-03f286b1b5fd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_AccruedFacilityCostsCurrent_e6d495c7-2957-49d3-980d-611e165b68a7" xlink:href="bsy-20211231.xsd#bsy_AccruedFacilityCostsCurrent"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_d372cb08-373b-45ac-a743-e8d349d68292" xlink:to="loc_bsy_AccruedFacilityCostsCurrent_e6d495c7-2957-49d3-980d-611e165b68a7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserveCurrent_d0307bdb-5304-405f-9128-1c0c61a281ff" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestructuringReserveCurrent"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_d372cb08-373b-45ac-a743-e8d349d68292" xlink:to="loc_us-gaap_RestructuringReserveCurrent_d0307bdb-5304-405f-9128-1c0c61a281ff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedSalariesCurrent_885132d0-bfb9-4407-9fb2-694414441997" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedSalariesCurrent"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_d372cb08-373b-45ac-a743-e8d349d68292" xlink:to="loc_us-gaap_AccruedSalariesCurrent_885132d0-bfb9-4407-9fb2-694414441997" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_AccruedCloudProvisioningCostsCurrent_2e66f740-139a-4f5a-adbf-6f1f813b21f3" xlink:href="bsy-20211231.xsd#bsy_AccruedCloudProvisioningCostsCurrent"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_d372cb08-373b-45ac-a743-e8d349d68292" xlink:to="loc_bsy_AccruedCloudProvisioningCostsCurrent_2e66f740-139a-4f5a-adbf-6f1f813b21f3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedEmployeeBenefitsCurrent_5c6e0318-fbbb-4b7f-82bb-fd98bbe44ede" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedEmployeeBenefitsCurrent"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_d372cb08-373b-45ac-a743-e8d349d68292" xlink:to="loc_us-gaap_AccruedEmployeeBenefitsCurrent_5c6e0318-fbbb-4b7f-82bb-fd98bbe44ede" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedProfessionalFeesCurrent_b63ca3d6-6ab9-4752-be2a-7164b75014dd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedProfessionalFeesCurrent"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_d372cb08-373b-45ac-a743-e8d349d68292" xlink:to="loc_us-gaap_AccruedProfessionalFeesCurrent_b63ca3d6-6ab9-4752-be2a-7164b75014dd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationLiabilityCurrent_ecaef976-f60e-4aca-8099-60ef3bdd04dd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredCompensationLiabilityCurrent"/>
    <link:calculationArc order="15" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_d372cb08-373b-45ac-a743-e8d349d68292" xlink:to="loc_us-gaap_DeferredCompensationLiabilityCurrent_ecaef976-f60e-4aca-8099-60ef3bdd04dd" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/LongTermDebtScheduleofLongTermDebtDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#LongTermDebtScheduleofLongTermDebtDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/LongTermDebtScheduleofLongTermDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_7b739ae1-81f2-4386-b4f7-e4dfb4df0fca" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscount_87ed663c-2cbd-4213-b9e2-458e5a5d4a97" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscount"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_7b739ae1-81f2-4386-b4f7-e4dfb4df0fca" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscount_87ed663c-2cbd-4213-b9e2-458e5a5d4a97" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_05e7ee03-2e5a-467d-a761-8688c0f98441" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_7b739ae1-81f2-4386-b4f7-e4dfb4df0fca" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_05e7ee03-2e5a-467d-a761-8688c0f98441" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/LongTermDebtScheduleofLongTermDebtDetails_1" xlink:type="simple" xlink:href="bsy-20211231.xsd#LongTermDebtScheduleofLongTermDebtDetails_1"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/LongTermDebtScheduleofLongTermDebtDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_d7cb93dd-03b6-4c90-8dac-0e053848c1f8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_c45ed8b9-8a80-4398-9b8d-ce24e52d9ba2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_d7cb93dd-03b6-4c90-8dac-0e053848c1f8" xlink:to="loc_us-gaap_LongTermDebtCurrent_c45ed8b9-8a80-4398-9b8d-ce24e52d9ba2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_a06b0587-60a8-483a-a8a6-821f549ae76c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_d7cb93dd-03b6-4c90-8dac-0e053848c1f8" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_a06b0587-60a8-483a-a8a6-821f549ae76c" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/LongTermDebtScheduleofInterestExpenseDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#LongTermDebtScheduleofInterestExpenseDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/LongTermDebtScheduleofInterestExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_9e02b533-bdae-444d-96fc-08ca9c0a1e30" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpenseDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_InterestExpenseDerivatives_f56ba525-3663-4cef-9152-fad9fa9f227a" xlink:href="bsy-20211231.xsd#bsy_InterestExpenseDerivatives"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpenseDebt_9e02b533-bdae-444d-96fc-08ca9c0a1e30" xlink:to="loc_bsy_InterestExpenseDerivatives_f56ba525-3663-4cef-9152-fad9fa9f227a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_71b11ee9-d11d-46fc-9044-4a26f28be592" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AmortizationOfFinancingCosts"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpenseDebt_9e02b533-bdae-444d-96fc-08ca9c0a1e30" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_71b11ee9-d11d-46fc-9044-4a26f28be592" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebtExcludingAmortization_22df2117-cc3a-4fc2-8aa6-db29ad00c87d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpenseDebtExcludingAmortization"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpenseDebt_9e02b533-bdae-444d-96fc-08ca9c0a1e30" xlink:to="loc_us-gaap_InterestExpenseDebtExcludingAmortization_22df2117-cc3a-4fc2-8aa6-db29ad00c87d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_26ffa2f6-0d8b-4a73-901d-72f599c25fd9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseOther_d3daf0c6-129b-4645-9ae6-c3d7cfaf6f3f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpenseOther"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpense_26ffa2f6-0d8b-4a73-901d-72f599c25fd9" xlink:to="loc_us-gaap_InterestExpenseOther_d3daf0c6-129b-4645-9ae6-c3d7cfaf6f3f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_9894fa30-ce9a-4c21-ace1-3fbbb772fada" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpenseDebt"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpense_26ffa2f6-0d8b-4a73-901d-72f599c25fd9" xlink:to="loc_us-gaap_InterestExpenseDebt_9894fa30-ce9a-4c21-ace1-3fbbb772fada" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/LongTermDebtLongTermDebtMaturityDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#LongTermDebtLongTermDebtMaturityDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/LongTermDebtLongTermDebtMaturityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_13be97a5-5f54-4a80-b0bc-ebc5f2509769" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_a41ac0bc-cc1b-4ce9-91fe-04e3c1956145" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_13be97a5-5f54-4a80-b0bc-ebc5f2509769" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_a41ac0bc-cc1b-4ce9-91fe-04e3c1956145" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_3c227b20-5eff-45f2-ac99-d59708e26ea0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_13be97a5-5f54-4a80-b0bc-ebc5f2509769" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_3c227b20-5eff-45f2-ac99-d59708e26ea0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_1ec2521e-4971-4d4c-a234-162afbc9092d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_13be97a5-5f54-4a80-b0bc-ebc5f2509769" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_1ec2521e-4971-4d4c-a234-162afbc9092d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_ea6ec599-10ca-4a28-b9a7-424962d1c194" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_13be97a5-5f54-4a80-b0bc-ebc5f2509769" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_ea6ec599-10ca-4a28-b9a7-424962d1c194" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_9fe8a648-b2a0-410a-ab2a-e46f75d22484" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_13be97a5-5f54-4a80-b0bc-ebc5f2509769" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_9fe8a648-b2a0-410a-ab2a-e46f75d22484" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_80fb9454-e661-4c01-8b48-39275eff47a7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_13be97a5-5f54-4a80-b0bc-ebc5f2509769" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_80fb9454-e661-4c01-8b48-39275eff47a7" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/RetirementPlansDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#RetirementPlansDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/RetirementPlansDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationLiabilityCurrentAndNoncurrent_4b1f9ea8-0152-4f4a-bb09-2473237c426d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredCompensationLiabilityCurrentAndNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_d80e45bd-d846-4155-a4aa-2019053e6da0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredCompensationLiabilityCurrentAndNoncurrent_4b1f9ea8-0152-4f4a-bb09-2473237c426d" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_d80e45bd-d846-4155-a4aa-2019053e6da0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent_677d2221-1aa6-4e60-a394-87b9d637506f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredCompensationLiabilityCurrentAndNoncurrent_4b1f9ea8-0152-4f4a-bb09-2473237c426d" xlink:to="loc_us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent_677d2221-1aa6-4e60-a394-87b9d637506f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/AccumulatedOtherComprehensiveLossRollforwardofAOCIDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#AccumulatedOtherComprehensiveLossRollforwardofAOCIDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/AccumulatedOtherComprehensiveLossRollforwardofAOCIDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_108cd5d9-28a1-468e-a939-0db45193d3af" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1_fc3b85b2-775b-4792-ba71-ffc6dbf8ad5f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_108cd5d9-28a1-468e-a939-0db45193d3af" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1_fc3b85b2-775b-4792-ba71-ffc6dbf8ad5f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_9870b5a6-9306-4951-bf1c-7ccff690ef07" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_108cd5d9-28a1-468e-a939-0db45193d3af" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_9870b5a6-9306-4951-bf1c-7ccff690ef07" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/IncomeTaxesScheduleofIncomebeforeIncomeTaxDomesticandInternationalDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#IncomeTaxesScheduleofIncomebeforeIncomeTaxDomesticandInternationalDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/IncomeTaxesScheduleofIncomebeforeIncomeTaxDomesticandInternationalDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_35d9bd1a-6cf8-481d-8d01-c5ca19375303" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_242ab171-1ee9-42e2-9355-aab2047dfe56" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_35d9bd1a-6cf8-481d-8d01-c5ca19375303" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_242ab171-1ee9-42e2-9355-aab2047dfe56" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_65457ade-9512-497f-9844-0beb4f80cd1c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_35d9bd1a-6cf8-481d-8d01-c5ca19375303" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_65457ade-9512-497f-9844-0beb4f80cd1c" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/IncomeTaxesScheduleofComponentsofIncomeTaxDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#IncomeTaxesScheduleofComponentsofIncomeTaxDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/IncomeTaxesScheduleofComponentsofIncomeTaxDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_f1909e78-994f-4cba-984d-71bc59ef48fd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_a3c63e0f-9ed7-4486-a5fe-b57ab34c116b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_f1909e78-994f-4cba-984d-71bc59ef48fd" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_a3c63e0f-9ed7-4486-a5fe-b57ab34c116b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_dff1ff56-ec1b-470e-9285-94af861c1498" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_f1909e78-994f-4cba-984d-71bc59ef48fd" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_dff1ff56-ec1b-470e-9285-94af861c1498" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_cd5895b7-ce5b-48b3-8802-d59816bc3560" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_70af5fa5-ae9a-46bc-ae94-2f5519d0ce2e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_cd5895b7-ce5b-48b3-8802-d59816bc3560" xlink:to="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_70af5fa5-ae9a-46bc-ae94-2f5519d0ce2e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_874598fa-6057-46a5-9210-da392bd50a7a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_cd5895b7-ce5b-48b3-8802-d59816bc3560" xlink:to="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_874598fa-6057-46a5-9210-da392bd50a7a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredForeignIncomeTaxExpenseBenefit_1a3c47e5-f9a5-4e18-82b2-c9caeb88f55d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredForeignIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_cd5895b7-ce5b-48b3-8802-d59816bc3560" xlink:to="loc_us-gaap_DeferredForeignIncomeTaxExpenseBenefit_1a3c47e5-f9a5-4e18-82b2-c9caeb88f55d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_af6491f4-ea02-4cb9-9108-bae9efcad492" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentForeignTaxExpenseBenefit_b787257a-507f-41a1-8328-18bdfa6ee652" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CurrentForeignTaxExpenseBenefit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_af6491f4-ea02-4cb9-9108-bae9efcad492" xlink:to="loc_us-gaap_CurrentForeignTaxExpenseBenefit_b787257a-507f-41a1-8328-18bdfa6ee652" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_4210db51-b82b-462d-9f34-20fcc0a67460" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_af6491f4-ea02-4cb9-9108-bae9efcad492" xlink:to="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_4210db51-b82b-462d-9f34-20fcc0a67460" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentFederalTaxExpenseBenefit_c1a23782-7346-4560-aa0e-5aeb342e4ac8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CurrentFederalTaxExpenseBenefit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_af6491f4-ea02-4cb9-9108-bae9efcad492" xlink:to="loc_us-gaap_CurrentFederalTaxExpenseBenefit_c1a23782-7346-4560-aa0e-5aeb342e4ac8" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/IncomeTaxesScheduleofEffectiveIncomeTaxRateReconciliationDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#IncomeTaxesScheduleofEffectiveIncomeTaxRateReconciliationDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/IncomeTaxesScheduleofEffectiveIncomeTaxRateReconciliationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6d3f030d-4551-48c5-a5d5-0cb5a0b967e9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_8ac54a76-4087-45b2-bed4-f59de84f88bf" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6d3f030d-4551-48c5-a5d5-0cb5a0b967e9" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_8ac54a76-4087-45b2-bed4-f59de84f88bf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_EffectiveIncomeTaxRateReconciliationStockIssuanceCosts_e48b1510-96c6-4eb0-95f4-b6f38785bbef" xlink:href="bsy-20211231.xsd#bsy_EffectiveIncomeTaxRateReconciliationStockIssuanceCosts"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6d3f030d-4551-48c5-a5d5-0cb5a0b967e9" xlink:to="loc_bsy_EffectiveIncomeTaxRateReconciliationStockIssuanceCosts_e48b1510-96c6-4eb0-95f4-b6f38785bbef" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_c2883784-bdbd-4ea9-b3f3-5ef64f7b7a0e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6d3f030d-4551-48c5-a5d5-0cb5a0b967e9" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_c2883784-bdbd-4ea9-b3f3-5ef64f7b7a0e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential_76e7a996-494c-4866-a8a1-b6bf8b8cb310" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6d3f030d-4551-48c5-a5d5-0cb5a0b967e9" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential_76e7a996-494c-4866-a8a1-b6bf8b8cb310" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost_8c900716-540e-4b70-a8a2-6b5ccdab66b0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6d3f030d-4551-48c5-a5d5-0cb5a0b967e9" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost_8c900716-540e-4b70-a8a2-6b5ccdab66b0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTaxOnAccumulatedForeignEarningsPercent_07cd7f07-2701-413e-966c-3a4f41964d43" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTaxOnAccumulatedForeignEarningsPercent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6d3f030d-4551-48c5-a5d5-0cb5a0b967e9" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTaxOnAccumulatedForeignEarningsPercent_07cd7f07-2701-413e-966c-3a4f41964d43" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_82956afe-925b-4f43-b7ac-0e6fcb85b84f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6d3f030d-4551-48c5-a5d5-0cb5a0b967e9" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_82956afe-925b-4f43-b7ac-0e6fcb85b84f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits_628d22d8-7ca5-4ed0-8410-c1d187423dec" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6d3f030d-4551-48c5-a5d5-0cb5a0b967e9" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits_628d22d8-7ca5-4ed0-8410-c1d187423dec" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingencies_cf25365a-a06a-4d00-a315-1c2eed13d565" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingencies"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6d3f030d-4551-48c5-a5d5-0cb5a0b967e9" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingencies_cf25365a-a06a-4d00-a315-1c2eed13d565" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther_93ab9fb4-a570-4677-8411-cc1d8306bf9a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6d3f030d-4551-48c5-a5d5-0cb5a0b967e9" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther_93ab9fb4-a570-4677-8411-cc1d8306bf9a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOfficerCompensationPercent_24b4d49e-f5ea-462d-b478-0bae5f0a496d" xlink:href="bsy-20211231.xsd#bsy_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOfficerCompensationPercent"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6d3f030d-4551-48c5-a5d5-0cb5a0b967e9" xlink:to="loc_bsy_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOfficerCompensationPercent_24b4d49e-f5ea-462d-b478-0bae5f0a496d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_EffectiveIncomeTaxRateReconciliationTransactionCostsPercent_b7c7111b-4df5-4c62-b982-3a27d822ff65" xlink:href="bsy-20211231.xsd#bsy_EffectiveIncomeTaxRateReconciliationTransactionCostsPercent"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_6d3f030d-4551-48c5-a5d5-0cb5a0b967e9" xlink:to="loc_bsy_EffectiveIncomeTaxRateReconciliationTransactionCostsPercent_b7c7111b-4df5-4c62-b982-3a27d822ff65" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/IncomeTaxesScheduleofDeferredTaxAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#IncomeTaxesScheduleofDeferredTaxAssetsandLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/IncomeTaxesScheduleofDeferredTaxAssetsandLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsNet_f407f85f-4dbe-429c-8736-e613b6d3de39" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_e815751c-4e63-4111-a90b-ef1209bb8fd5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsNet_f407f85f-4dbe-429c-8736-e613b6d3de39" xlink:to="loc_us-gaap_DeferredTaxAssetsGross_e815751c-4e63-4111-a90b-ef1209bb8fd5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_ff74ad83-6b8a-46ce-8921-9f151b3c1e3f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsNet_f407f85f-4dbe-429c-8736-e613b6d3de39" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_ff74ad83-6b8a-46ce-8921-9f151b3c1e3f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities_0634fc94-29dd-45f6-99c4-30efc89cc965" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesPrepaidExpenses_075630a8-6e4f-4724-88cd-a90f487c3566" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxLiabilitiesPrepaidExpenses"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_0634fc94-29dd-45f6-99c4-30efc89cc965" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesPrepaidExpenses_075630a8-6e4f-4724-88cd-a90f487c3566" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesLeasingArrangements_e184afe1-bdce-47fa-a9ff-5d261c257da3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxLiabilitiesLeasingArrangements"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_0634fc94-29dd-45f6-99c4-30efc89cc965" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesLeasingArrangements_e184afe1-bdce-47fa-a9ff-5d261c257da3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssets_4c9f2ce6-e36f-4223-81e7-a71087263e48" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssets"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_0634fc94-29dd-45f6-99c4-30efc89cc965" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssets_4c9f2ce6-e36f-4223-81e7-a71087263e48" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome_96d3dc03-d523-4495-885c-309bb278885e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_0634fc94-29dd-45f6-99c4-30efc89cc965" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome_96d3dc03-d523-4495-885c-309bb278885e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_DeferredTaxLiabilitiesUnrealizedGainsLosses_10235c52-4f74-4257-bfb1-bece2d2f0bed" xlink:href="bsy-20211231.xsd#bsy_DeferredTaxLiabilitiesUnrealizedGainsLosses"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_0634fc94-29dd-45f6-99c4-30efc89cc965" xlink:to="loc_bsy_DeferredTaxLiabilitiesUnrealizedGainsLosses_10235c52-4f74-4257-bfb1-bece2d2f0bed" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_57816f5d-d721-40b2-845c-8e91a488e19f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_0634fc94-29dd-45f6-99c4-30efc89cc965" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_57816f5d-d721-40b2-845c-8e91a488e19f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_53d340a6-049d-4d53-90b0-d698bf10a73a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsGross"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsOther_a38f5ee2-05a7-409c-8a86-01c25c12b67a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsOther"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_53d340a6-049d-4d53-90b0-d698bf10a73a" xlink:to="loc_us-gaap_DeferredTaxAssetsOther_a38f5ee2-05a7-409c-8a86-01c25c12b67a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsOtherComprehensiveLoss_ef128d23-0adc-45c5-8976-b3dcafdda111" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsOtherComprehensiveLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_53d340a6-049d-4d53-90b0-d698bf10a73a" xlink:to="loc_us-gaap_DeferredTaxAssetsOtherComprehensiveLoss_ef128d23-0adc-45c5-8976-b3dcafdda111" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_DeferredTaxAssetsOperatingLossCarryforwardsAndTaxCreditCarryforwards_d4ec5a62-c1f8-4a41-a35e-7dab8311acc5" xlink:href="bsy-20211231.xsd#bsy_DeferredTaxAssetsOperatingLossCarryforwardsAndTaxCreditCarryforwards"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_53d340a6-049d-4d53-90b0-d698bf10a73a" xlink:to="loc_bsy_DeferredTaxAssetsOperatingLossCarryforwardsAndTaxCreditCarryforwards_d4ec5a62-c1f8-4a41-a35e-7dab8311acc5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther_e693bac3-1936-47c8-8e4e-5e3752fa255e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_53d340a6-049d-4d53-90b0-d698bf10a73a" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther_e693bac3-1936-47c8-8e4e-5e3752fa255e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets_060288db-3450-4006-abd7-5935f504dd51" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_53d340a6-049d-4d53-90b0-d698bf10a73a" xlink:to="loc_us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets_060288db-3450-4006-abd7-5935f504dd51" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_58078aa2-8bbd-400f-9a61-31e89c97aeba" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_53d340a6-049d-4d53-90b0-d698bf10a73a" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_58078aa2-8bbd-400f-9a61-31e89c97aeba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_DeferredTaxAssetsConvertibleDebtAnd163jLimitation_8d650560-8e50-4307-b080-5f18639bbbcc" xlink:href="bsy-20211231.xsd#bsy_DeferredTaxAssetsConvertibleDebtAnd163jLimitation"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_53d340a6-049d-4d53-90b0-d698bf10a73a" xlink:to="loc_bsy_DeferredTaxAssetsConvertibleDebtAnd163jLimitation_8d650560-8e50-4307-b080-5f18639bbbcc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits_ba7445cc-70d7-470e-8569-99a3db6c1fa0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_53d340a6-049d-4d53-90b0-d698bf10a73a" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits_ba7445cc-70d7-470e-8569-99a3db6c1fa0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_DeferredTaxAssetLeasingLiability_97527bf4-cd57-4d3d-be8c-5c35c54e4d7c" xlink:href="bsy-20211231.xsd#bsy_DeferredTaxAssetLeasingLiability"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_53d340a6-049d-4d53-90b0-d698bf10a73a" xlink:to="loc_bsy_DeferredTaxAssetLeasingLiability_97527bf4-cd57-4d3d-be8c-5c35c54e4d7c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_8bc0f5fc-9eff-468d-adb9-83ecb65640da" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities_a2767a1f-8436-4366-9674-086bc7ad50b2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilities"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_8bc0f5fc-9eff-468d-adb9-83ecb65640da" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilities_a2767a1f-8436-4366-9674-086bc7ad50b2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsNet_15f6a583-b426-4457-8292-e338356ecba6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_8bc0f5fc-9eff-468d-adb9-83ecb65640da" xlink:to="loc_us-gaap_DeferredTaxAssetsNet_15f6a583-b426-4457-8292-e338356ecba6" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/FairValueofFinancialInstrumentsFairValueofFinancialAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#FairValueofFinancialInstrumentsFairValueofFinancialAssetsandLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/FairValueofFinancialInstrumentsFairValueofFinancialAssetsandLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosure_c6baac6e-6c5c-4c2f-adeb-c02bb4664e16" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_fc3c00f3-e027-4ade-bcaa-e6e4de011fbf" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiability"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosure_c6baac6e-6c5c-4c2f-adeb-c02bb4664e16" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_fc3c00f3-e027-4ade-bcaa-e6e4de011fbf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_AccruedEquityBasedCompensationFairValueDisclosure_a0adc514-d415-49bb-a06e-b9ee9f0e9e80" xlink:href="bsy-20211231.xsd#bsy_AccruedEquityBasedCompensationFairValueDisclosure"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosure_c6baac6e-6c5c-4c2f-adeb-c02bb4664e16" xlink:to="loc_bsy_AccruedEquityBasedCompensationFairValueDisclosure_a0adc514-d415-49bb-a06e-b9ee9f0e9e80" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_DeferredCompensationLiabilityFairValueDisclosure_88c34553-40ed-4a68-b6f1-ead90aae7249" xlink:href="bsy-20211231.xsd#bsy_DeferredCompensationLiabilityFairValueDisclosure"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosure_c6baac6e-6c5c-4c2f-adeb-c02bb4664e16" xlink:to="loc_bsy_DeferredCompensationLiabilityFairValueDisclosure_88c34553-40ed-4a68-b6f1-ead90aae7249" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_0e28204a-cef5-4a4e-9483-22ba27654b22" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets_7c5d3fcf-1e8a-4a62-9a93-7c0041d34bf4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeAssets"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_0e28204a-cef5-4a4e-9483-22ba27654b22" xlink:to="loc_us-gaap_DerivativeAssets_7c5d3fcf-1e8a-4a62-9a93-7c0041d34bf4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_b4398b43-070e-472a-890b-87e092076560" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_0e28204a-cef5-4a4e-9483-22ba27654b22" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_b4398b43-070e-472a-890b-87e092076560" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/InterestExpenseNetDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#InterestExpenseNetDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/InterestExpenseNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_30fbe32b-d302-4b68-8260-3e5ee12e8d09" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeInterest_b3108c30-a65e-4bbc-b07a-ee5b0275d5d1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InvestmentIncomeInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_30fbe32b-d302-4b68-8260-3e5ee12e8d09" xlink:to="loc_us-gaap_InvestmentIncomeInterest_b3108c30-a65e-4bbc-b07a-ee5b0275d5d1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_8a86e479-f907-428d-8fcf-91dd9bfd3fd2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpense"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_30fbe32b-d302-4b68-8260-3e5ee12e8d09" xlink:to="loc_us-gaap_InterestExpense_8a86e479-f907-428d-8fcf-91dd9bfd3fd2" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/OtherIncomeExpenseNetScheduleofOtherIncomeExpenseDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#OtherIncomeExpenseNetScheduleofOtherIncomeExpenseDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/OtherIncomeExpenseNetScheduleofOtherIncomeExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_21436585-d370-4438-8a97-c622ed99cd36" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossUnrealized_582bcd55-87a4-4e23-b727-60ecbc57b436" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ForeignCurrencyTransactionGainLossUnrealized"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_21436585-d370-4438-8a97-c622ed99cd36" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossUnrealized_582bcd55-87a4-4e23-b727-60ecbc57b436" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_bsy_OtherMiscellaneousNonoperatingIncomeExpenseOther_d37da180-0ea4-4f29-b8f0-8041c598fdee" xlink:href="bsy-20211231.xsd#bsy_OtherMiscellaneousNonoperatingIncomeExpenseOther"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_21436585-d370-4438-8a97-c622ed99cd36" xlink:to="loc_bsy_OtherMiscellaneousNonoperatingIncomeExpenseOther_d37da180-0ea4-4f29-b8f0-8041c598fdee" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.bentley.com/role/NetIncomePerShareScheduleofBasicandDilutedNetLossIncomePerShareDetails" xlink:type="simple" xlink:href="bsy-20211231.xsd#NetIncomePerShareScheduleofBasicandDilutedNetLossIncomePerShareDetails"/>
  <link:calculationLink xlink:role="http://www.bentley.com/role/NetIncomePerShareScheduleofBasicandDilutedNetLossIncomePerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_b3edb3b9-ae19-4324-b073-79307c5ba7f5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_33530c09-dd36-450c-b6c9-747c5dd6ed53" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_b3edb3b9-ae19-4324-b073-79307c5ba7f5" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_33530c09-dd36-450c-b6c9-747c5dd6ed53" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_6d450f60-4d4e-4941-aa27-6f8f4272d54c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_b3edb3b9-ae19-4324-b073-79307c5ba7f5" xlink:to="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_6d450f60-4d4e-4941-aa27-6f8f4272d54c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities_82f4262e-dc8b-4e9c-8929-29f10f517268" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_b3edb3b9-ae19-4324-b073-79307c5ba7f5" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities_82f4262e-dc8b-4e9c-8929-29f10f517268" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_203905c3-6dfe-431f-b0f0-c5b90778f6fa" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_b3edb3b9-ae19-4324-b073-79307c5ba7f5" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_203905c3-6dfe-431f-b0f0-c5b90778f6fa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_fe4e6641-3191-4b7c-9152-527a9d202684" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestOnConvertibleDebtNetOfTax_b54b898e-dcb5-4622-a3e9-ed1306f60e04" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestOnConvertibleDebtNetOfTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_fe4e6641-3191-4b7c-9152-527a9d202684" xlink:to="loc_us-gaap_InterestOnConvertibleDebtNetOfTax_b54b898e-dcb5-4622-a3e9-ed1306f60e04" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_aef919e6-24fc-4034-bbed-1e5cb523a20f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_fe4e6641-3191-4b7c-9152-527a9d202684" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_aef919e6-24fc-4034-bbed-1e5cb523a20f" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
