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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019e27cd-df90-7af6-a14c-235ed1fba584,g:5a567f4c-92df-4664-9736-18da3ba00b0d-->
<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:arcroleRef arcroleURI="https://xbrl.org/2023/arcrole/summation-item" xlink:type="simple" xlink:href="https://www.xbrl.org/2023/calculation-1.1.xsd#summation-item"/>
  <link:roleRef roleURI="http://willislease.com/role/CondensedConsolidatedBalanceSheets" xlink:type="simple" xlink:href="wlfc-20260630.xsd#CondensedConsolidatedBalanceSheets"/>
  <link:calculationLink xlink:role="http://willislease.com/role/CondensedConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019e27cd-e14f-703c-a81e-6ffd5cfed4c9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_019e27cd-e14f-7415-8656-8781f1d36916" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e27cd-e14f-703c-a81e-6ffd5cfed4c9" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_019e27cd-e14f-7415-8656-8781f1d36916" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019e27cd-e14f-7b90-afb9-0e0e2d34c0f2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e27cd-e14f-703c-a81e-6ffd5cfed4c9" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019e27cd-e14f-7b90-afb9-0e0e2d34c0f2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019e27cd-e14f-7577-9068-9b8600923cdc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e27cd-e14f-703c-a81e-6ffd5cfed4c9" xlink:to="loc_us-gaap_LongTermDebt_019e27cd-e14f-7577-9068-9b8600923cdc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wlfc_MaintenanceReserves_019e27cd-e14f-7de0-a932-dba34367fd77" xlink:href="wlfc-20260630.xsd#wlfc_MaintenanceReserves"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e27cd-e14f-703c-a81e-6ffd5cfed4c9" xlink:to="loc_wlfc_MaintenanceReserves_019e27cd-e14f-7de0-a932-dba34367fd77" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecurityDepositLiability_019e27cd-e14f-722b-87ff-7c4f213f9713" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecurityDepositLiability"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e27cd-e14f-703c-a81e-6ffd5cfed4c9" xlink:to="loc_us-gaap_SecurityDepositLiability_019e27cd-e14f-722b-87ff-7c4f213f9713" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiability_019e27cd-e14f-7ac6-b24a-8b27e543f60d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractWithCustomerLiability"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e27cd-e14f-703c-a81e-6ffd5cfed4c9" xlink:to="loc_us-gaap_ContractWithCustomerLiability_019e27cd-e14f-7ac6-b24a-8b27e543f60d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilities_019f8aa6-8eee-78d2-9732-2e17cc84da5c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilities"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e27cd-e14f-703c-a81e-6ffd5cfed4c9" xlink:to="loc_us-gaap_OtherLiabilities_019f8aa6-8eee-78d2-9732-2e17cc84da5c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e27cd-e14f-7be4-ae94-e9549d20d821" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019e27cd-e14f-77f5-9b25-11408a2bc819" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e27cd-e14f-7be4-ae94-e9549d20d821" xlink:to="loc_us-gaap_Liabilities_019e27cd-e14f-77f5-9b25-11408a2bc819" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_019e27cd-e14f-736c-a958-5f84e6304b15" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquityCarryingAmountAttributableToParent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e27cd-e14f-7be4-ae94-e9549d20d821" xlink:to="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_019e27cd-e14f-736c-a958-5f84e6304b15" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019e27cd-e14f-7b67-8c2b-66d1c0c9d36b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e27cd-e14f-7be4-ae94-e9549d20d821" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019e27cd-e14f-7b67-8c2b-66d1c0c9d36b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019f8a62-9da1-7c63-a1af-ae8a6e5fc33a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019f8a62-9da1-7bdf-a046-61ee399f363f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019f8a62-9da1-7c63-a1af-ae8a6e5fc33a" xlink:to="loc_us-gaap_StockholdersEquity_019f8a62-9da1-7bdf-a046-61ee399f363f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_019f8a62-9da1-742e-a9fa-60f114df9867" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MinorityInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019f8a62-9da1-7c63-a1af-ae8a6e5fc33a" xlink:to="loc_us-gaap_MinorityInterest_019f8a62-9da1-742e-a9fa-60f114df9867" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019e27cd-e14f-7573-beb3-7d648c403b58" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_019e27cd-e14f-7b40-a1ae-4c4436c70f38" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e27cd-e14f-7573-beb3-7d648c403b58" xlink:to="loc_us-gaap_CommonStockValue_019e27cd-e14f-7b40-a1ae-4c4436c70f38" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019e27cd-e14f-73bc-8ef3-4e8cfdc8f766" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e27cd-e14f-7573-beb3-7d648c403b58" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019e27cd-e14f-73bc-8ef3-4e8cfdc8f766" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_019e27cd-e14f-7f6c-ae82-cec46a44db86" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e27cd-e14f-7573-beb3-7d648c403b58" xlink:to="loc_us-gaap_AdditionalPaidInCapital_019e27cd-e14f-7f6c-ae82-cec46a44db86" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019e27cd-e14f-754e-a399-8364ec7b55cd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e27cd-e14f-7573-beb3-7d648c403b58" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019e27cd-e14f-754e-a399-8364ec7b55cd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019e27cd-e14f-7837-a7d2-88e9b7d124bc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019e27cd-e14f-7858-88b4-9dc5d38a8b0d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e27cd-e14f-7837-a7d2-88e9b7d124bc" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019e27cd-e14f-7858-88b4-9dc5d38a8b0d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCash_019e27cd-e14f-7e2b-9722-cdc626ea07ec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCash"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e27cd-e14f-7837-a7d2-88e9b7d124bc" xlink:to="loc_us-gaap_RestrictedCash_019e27cd-e14f-7e2b-9722-cdc626ea07ec" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wlfc_EquipmentHeldForOperatingLease_019e27cd-e14f-700e-9b46-90a4cecd8d21" xlink:href="wlfc-20260630.xsd#wlfc_EquipmentHeldForOperatingLease"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e27cd-e14f-7837-a7d2-88e9b7d124bc" xlink:to="loc_wlfc_EquipmentHeldForOperatingLease_019e27cd-e14f-700e-9b46-90a4cecd8d21" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wlfc_MaintenanceRights_019e27cd-e14f-7fab-8929-48d6c595435d" xlink:href="wlfc-20260630.xsd#wlfc_MaintenanceRights"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e27cd-e14f-7837-a7d2-88e9b7d124bc" xlink:to="loc_wlfc_MaintenanceRights_019e27cd-e14f-7fab-8929-48d6c595435d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wlfc_EquipmentHeldForSale_019e27cd-e14f-73d0-b3e9-5e9a0a2a97ba" xlink:href="wlfc-20260630.xsd#wlfc_EquipmentHeldForSale"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e27cd-e14f-7837-a7d2-88e9b7d124bc" xlink:to="loc_wlfc_EquipmentHeldForSale_019e27cd-e14f-73d0-b3e9-5e9a0a2a97ba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNet_019e27cd-e14f-7c72-bd4a-33dc6e0b76c2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableNet"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e27cd-e14f-7837-a7d2-88e9b7d124bc" xlink:to="loc_us-gaap_AccountsReceivableNet_019e27cd-e14f-7c72-bd4a-33dc6e0b76c2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AirlineRelatedInventoryAircraftParts_019e27cd-e14f-70cb-ae48-fd067225d656" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AirlineRelatedInventoryAircraftParts"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e27cd-e14f-7837-a7d2-88e9b7d124bc" xlink:to="loc_us-gaap_AirlineRelatedInventoryAircraftParts_019e27cd-e14f-70cb-ae48-fd067225d656" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Investments_019e27cd-e14f-7e68-8b40-57b01c75d832" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Investments"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e27cd-e14f-7837-a7d2-88e9b7d124bc" xlink:to="loc_us-gaap_Investments_019e27cd-e14f-7e68-8b40-57b01c75d832" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_019e27cd-e14f-7e8c-a057-a585781edc6c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e27cd-e14f-7837-a7d2-88e9b7d124bc" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_019e27cd-e14f-7e8c-a057-a585781edc6c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_019e27cd-e14f-7197-b314-4f8f54bd15b7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IntangibleAssetsNetIncludingGoodwill"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e27cd-e14f-7837-a7d2-88e9b7d124bc" xlink:to="loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_019e27cd-e14f-7197-b314-4f8f54bd15b7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermAccountsNotesAndLoansReceivableNetNoncurrent_019e27cd-e14f-7dd7-a905-6936164c59f3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermAccountsNotesAndLoansReceivableNetNoncurrent"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e27cd-e14f-7837-a7d2-88e9b7d124bc" xlink:to="loc_us-gaap_LongTermAccountsNotesAndLoansReceivableNetNoncurrent_019e27cd-e14f-7dd7-a905-6936164c59f3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeLeaseNetInvestmentInLeaseAfterAllowanceForCreditLoss_019e27cd-e14f-7af8-88a4-2acca58af970" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SalesTypeLeaseNetInvestmentInLeaseAfterAllowanceForCreditLoss"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e27cd-e14f-7837-a7d2-88e9b7d124bc" xlink:to="loc_us-gaap_SalesTypeLeaseNetInvestmentInLeaseAfterAllowanceForCreditLoss_019e27cd-e14f-7af8-88a4-2acca58af970" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdvancesToAffiliate_019e27cd-e14f-7f04-aa78-5ea2eb852cd1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdvancesToAffiliate"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e27cd-e14f-7837-a7d2-88e9b7d124bc" xlink:to="loc_us-gaap_AdvancesToAffiliate_019e27cd-e14f-7f04-aa78-5ea2eb852cd1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssets_019e27cd-e14f-788b-bf78-bb34de0f78eb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssets"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e27cd-e14f-7837-a7d2-88e9b7d124bc" xlink:to="loc_us-gaap_OtherAssets_019e27cd-e14f-788b-bf78-bb34de0f78eb" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://willislease.com/role/CondensedConsolidatedStatementsofIncome" xlink:type="simple" xlink:href="wlfc-20260630.xsd#CondensedConsolidatedStatementsofIncome"/>
  <link:calculationLink xlink:role="http://willislease.com/role/CondensedConsolidatedStatementsofIncome" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_019e27cd-e14f-757b-a9ee-4444de3a4c8c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e27cd-e14f-7b31-a84b-71d42fb53e4f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_019e27cd-e14f-757b-a9ee-4444de3a4c8c" xlink:to="loc_us-gaap_NetIncomeLoss_019e27cd-e14f-7b31-a84b-71d42fb53e4f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment_019e27cd-e14f-7f6a-aca8-f500ae00e7cf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_019e27cd-e14f-757b-a9ee-4444de3a4c8c" xlink:to="loc_us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment_019e27cd-e14f-7f6a-aca8-f500ae00e7cf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityDividendsAdjustment_019e27cd-e14f-7236-bd07-7785e7499e16" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquityDividendsAdjustment"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_019e27cd-e14f-757b-a9ee-4444de3a4c8c" xlink:to="loc_us-gaap_TemporaryEquityDividendsAdjustment_019e27cd-e14f-7236-bd07-7785e7499e16" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndDebtExpense_019e27cd-e14f-764e-9be8-7632267bc84d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestAndDebtExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019e27cd-e14f-7035-81ce-9efd912166a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InterestAndDebtExpense_019e27cd-e14f-764e-9be8-7632267bc84d" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019e27cd-e14f-7035-81ce-9efd912166a5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_019e27cd-e14f-731b-be27-fed3c06f7ee8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InterestAndDebtExpense_019e27cd-e14f-764e-9be8-7632267bc84d" xlink:to="loc_us-gaap_InterestExpense_019e27cd-e14f-731b-be27-fed3c06f7ee8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e27cd-e14f-702f-83b6-b256eb84afb4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019e27cd-e14f-7390-9abf-d09f073a886b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e27cd-e14f-702f-83b6-b256eb84afb4" xlink:to="loc_us-gaap_ProfitLoss_019e27cd-e14f-7390-9abf-d09f073a886b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_019e27cd-e14f-70d2-9abb-898f71d67f28" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e27cd-e14f-702f-83b6-b256eb84afb4" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_019e27cd-e14f-70d2-9abb-898f71d67f28" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_019e27cd-e14f-78bd-a0f9-2eea5e4baaf2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostsAndExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_019e27cd-e14f-713f-9e18-df285c60355c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019e27cd-e14f-78bd-a0f9-2eea5e4baaf2" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_019e27cd-e14f-713f-9e18-df285c60355c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingExpense_019e27cd-e14f-71bb-ac4f-2f53687b261d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SellingExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019e27cd-e14f-78bd-a0f9-2eea5e4baaf2" xlink:to="loc_us-gaap_SellingExpense_019e27cd-e14f-71bb-ac4f-2f53687b261d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostMaintenance_019e27cd-e14f-7e94-bc6a-29aca1245ae5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostMaintenance"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019e27cd-e14f-78bd-a0f9-2eea5e4baaf2" xlink:to="loc_us-gaap_CostMaintenance_019e27cd-e14f-7e94-bc6a-29aca1245ae5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductionRelatedImpairmentsOrCharges_019e27cd-e14f-751c-bc5b-ff8872dfa2fa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProductionRelatedImpairmentsOrCharges"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019e27cd-e14f-78bd-a0f9-2eea5e4baaf2" xlink:to="loc_us-gaap_ProductionRelatedImpairmentsOrCharges_019e27cd-e14f-751c-bc5b-ff8872dfa2fa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_019e27cd-e14f-7e59-8afa-a6a9e6e3825c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019e27cd-e14f-78bd-a0f9-2eea5e4baaf2" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_019e27cd-e14f-7e59-8afa-a6a9e6e3825c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquipmentExpense_019e27cd-e14f-70a3-9eb5-03cef2114609" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquipmentExpense"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019e27cd-e14f-78bd-a0f9-2eea5e4baaf2" xlink:to="loc_us-gaap_EquipmentExpense_019e27cd-e14f-70a3-9eb5-03cef2114609" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndDebtExpense_019e27cd-e14f-732f-a57e-d49ddb583966" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestAndDebtExpense"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019e27cd-e14f-78bd-a0f9-2eea5e4baaf2" xlink:to="loc_us-gaap_InterestAndDebtExpense_019e27cd-e14f-732f-a57e-d49ddb583966" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e27cd-e14f-7138-a3a3-7384b8093449" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019e27cd-e14f-7e1a-aee7-73754a757170" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e27cd-e14f-7138-a3a3-7384b8093449" xlink:to="loc_us-gaap_OperatingIncomeLoss_019e27cd-e14f-7e1a-aee7-73754a757170" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfBusiness_019e27cd-e14f-72d2-b382-2eef30469f38" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnSaleOfBusiness"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e27cd-e14f-7138-a3a3-7384b8093449" xlink:to="loc_us-gaap_GainLossOnSaleOfBusiness_019e27cd-e14f-72d2-b382-2eef30469f38" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_019e88b3-0ad1-72fe-a8a1-88da15a7f8fd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e27cd-e14f-7138-a3a3-7384b8093449" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_019e88b3-0ad1-72fe-a8a1-88da15a7f8fd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019f8cfb-2e96-7500-a115-3a63a29d33de" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019f8cfb-2e96-7423-bb76-32dd50d04f56" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_019f8cfb-2e96-7500-a115-3a63a29d33de" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019f8cfb-2e96-7423-bb76-32dd50d04f56" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019f8cfb-2e96-71b4-9804-0ebc10d0d826" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_019f8cfb-2e96-7500-a115-3a63a29d33de" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019f8cfb-2e96-71b4-9804-0ebc10d0d826" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019e27cd-e14f-7d85-a316-4b1433cf80ba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment_019e27cd-e14f-715d-99ce-3f79051c4d98" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019e27cd-e14f-7d85-a316-4b1433cf80ba" xlink:to="loc_us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment_019e27cd-e14f-715d-99ce-3f79051c4d98" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e27cd-e14f-7d5d-8551-98bf29b5b894" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019e27cd-e14f-7d85-a316-4b1433cf80ba" xlink:to="loc_us-gaap_NetIncomeLoss_019e27cd-e14f-7d5d-8551-98bf29b5b894" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityDividendsAdjustment_019e27cd-e14f-7078-87c6-ad19770e18cd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquityDividendsAdjustment"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019e27cd-e14f-7d85-a316-4b1433cf80ba" xlink:to="loc_us-gaap_TemporaryEquityDividendsAdjustment_019e27cd-e14f-7078-87c6-ad19770e18cd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019e27cd-e14f-71b1-8e37-2b4187595a5a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019e27cd-e14f-707a-98c4-0766c8f66874" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Revenues"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019e27cd-e14f-71b1-8e37-2b4187595a5a" xlink:to="loc_us-gaap_Revenues_019e27cd-e14f-707a-98c4-0766c8f66874" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_019e27cd-e14f-7e13-953c-6e013e7142f9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostsAndExpenses"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019e27cd-e14f-71b1-8e37-2b4187595a5a" xlink:to="loc_us-gaap_CostsAndExpenses_019e27cd-e14f-7e13-953c-6e013e7142f9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019e27cd-e14f-7d48-98e7-74424271d2a3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Revenues"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLeaseIncome_019e27cd-e14f-703c-a764-b4949ed02e8e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLeaseIncome"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_019e27cd-e14f-7d48-98e7-74424271d2a3" xlink:to="loc_us-gaap_OperatingLeaseLeaseIncome_019e27cd-e14f-703c-a764-b4949ed02e8e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_019e27cd-e14f-72e5-bf3a-fc51f105030d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_019e27cd-e14f-7d48-98e7-74424271d2a3" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_019e27cd-e14f-72e5-bf3a-fc51f105030d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeOperating_019e27cd-e14f-7342-983d-04f9a32cff91" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeOperating"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_019e27cd-e14f-7d48-98e7-74424271d2a3" xlink:to="loc_us-gaap_InterestIncomeOperating_019e27cd-e14f-7342-983d-04f9a32cff91" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfLeasedAssetsNetOperatingLeases_019e27cd-e14f-73f2-988f-ba402fe91f0a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnSaleOfLeasedAssetsNetOperatingLeases"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_019e27cd-e14f-7d48-98e7-74424271d2a3" xlink:to="loc_us-gaap_GainLossOnSaleOfLeasedAssetsNetOperatingLeases_019e27cd-e14f-73f2-988f-ba402fe91f0a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfNotesReceivable_019e27cd-e14f-762a-b87e-0960d26964b9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnSaleOfNotesReceivable"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_019e27cd-e14f-7d48-98e7-74424271d2a3" xlink:to="loc_us-gaap_GainLossOnSaleOfNotesReceivable_019e27cd-e14f-762a-b87e-0960d26964b9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wlfc_ManagementAndAdvisoryFees_019e27cd-e14f-784b-bc5b-b8553fb17ca7" xlink:href="wlfc-20260630.xsd#wlfc_ManagementAndAdvisoryFees"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_019e27cd-e14f-7d48-98e7-74424271d2a3" xlink:to="loc_wlfc_ManagementAndAdvisoryFees_019e27cd-e14f-784b-bc5b-b8553fb17ca7" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://willislease.com/role/CondensedConsolidatedStatementsofComprehensiveIncome" xlink:type="simple" xlink:href="wlfc-20260630.xsd#CondensedConsolidatedStatementsofComprehensiveIncome"/>
  <link:calculationLink xlink:role="http://willislease.com/role/CondensedConsolidatedStatementsofComprehensiveIncome" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_019fb8be-6261-75df-aa7f-f7dd6f951029" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_019fb8be-6261-7add-ac10-2c379afbd75e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019fb8be-6261-75df-aa7f-f7dd6f951029" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_019fb8be-6261-7add-ac10-2c379afbd75e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_019fb8be-6261-7ee2-b881-babdf04c2c2a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019fb8be-6261-75df-aa7f-f7dd6f951029" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_019fb8be-6261-7ee2-b881-babdf04c2c2a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTax_019e27cd-e14f-75b9-82f7-7606eaa7ce9d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax_019e27cd-e14f-7d68-bd82-eeadfcd1c692" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTax_019e27cd-e14f-75b9-82f7-7606eaa7ce9d" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax_019e27cd-e14f-7d68-bd82-eeadfcd1c692" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax_019e27cd-e14f-74b1-9d49-fb50eead9758" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTax_019e27cd-e14f-75b9-82f7-7606eaa7ce9d" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax_019e27cd-e14f-74b1-9d49-fb50eead9758" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax_019e27cd-e14f-78ab-a0b5-d80fccd549bf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTax_019e27cd-e14f-75b9-82f7-7606eaa7ce9d" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax_019e27cd-e14f-78ab-a0b5-d80fccd549bf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wlfc_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxEquityMethodInvestees_019f8d74-9cd9-767a-a2ee-97253608fb5b" xlink:href="wlfc-20260630.xsd#wlfc_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxEquityMethodInvestees"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTax_019e27cd-e14f-75b9-82f7-7606eaa7ce9d" xlink:to="loc_wlfc_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxEquityMethodInvestees_019f8d74-9cd9-767a-a2ee-97253608fb5b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019fa9c4-5683-71d6-85e8-d7aa5ea062ad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTax_019fa9c4-5683-7c9f-9e3f-1524b06b490b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019fa9c4-5683-71d6-85e8-d7aa5ea062ad" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTax_019fa9c4-5683-7c9f-9e3f-1524b06b490b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossTax_019fa9c4-5683-7afb-bbc9-9f4f658ebdf9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossTax"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019fa9c4-5683-71d6-85e8-d7aa5ea062ad" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossTax_019fa9c4-5683-7afb-bbc9-9f4f658ebdf9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_019fa9c4-8def-7988-836f-feb49958c79f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019fa9c4-8def-71c4-9bf5-7a2c8d0e6dd2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_019fa9c4-8def-7988-836f-feb49958c79f" xlink:to="loc_us-gaap_ProfitLoss_019fa9c4-8def-71c4-9bf5-7a2c8d0e6dd2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019fa9c4-8def-7748-a806-460b732b4a03" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_019fa9c4-8def-7988-836f-feb49958c79f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019fa9c4-8def-7748-a806-460b732b4a03" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://willislease.com/role/CondensedConsolidatedStatementsofCashFlows" xlink:type="simple" xlink:href="wlfc-20260630.xsd#CondensedConsolidatedStatementsofCashFlows"/>
  <link:calculationLink xlink:role="http://willislease.com/role/CondensedConsolidatedStatementsofCashFlows" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e27cd-e14f-74f8-adbf-7b38cb42579b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_019e27cd-e14f-788a-9056-f836bf9fe8aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RepaymentsOfLongTermDebt"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e27cd-e14f-74f8-adbf-7b38cb42579b" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_019e27cd-e14f-788a-9056-f836bf9fe8aa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_019e27cd-e14f-7fbe-b90f-c8d6b6d2ac15" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e27cd-e14f-74f8-adbf-7b38cb42579b" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_019e27cd-e14f-7fbe-b90f-c8d6b6d2ac15" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_019e27cd-e14f-7c71-8640-95d3e152d79b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e27cd-e14f-74f8-adbf-7b38cb42579b" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_019e27cd-e14f-7c71-8640-95d3e152d79b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_019e27cd-e14f-7f6b-b8d3-ae7e4227829e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsOfDebtIssuanceCosts"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e27cd-e14f-74f8-adbf-7b38cb42579b" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_019e27cd-e14f-7f6b-b8d3-ae7e4227829e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_019e27cd-e14f-775e-897b-4ceda7a05a6b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e27cd-e14f-74f8-adbf-7b38cb42579b" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_019e27cd-e14f-775e-897b-4ceda7a05a6b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtExtinguishmentCosts_019e27cd-e14f-7663-affb-6665f919e2dd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsOfDebtExtinguishmentCosts"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e27cd-e14f-74f8-adbf-7b38cb42579b" xlink:to="loc_us-gaap_PaymentsOfDebtExtinguishmentCosts_019e27cd-e14f-7663-affb-6665f919e2dd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock_019e27cd-e14f-785f-b200-2189bfbb1b12" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e27cd-e14f-74f8-adbf-7b38cb42579b" xlink:to="loc_us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock_019e27cd-e14f-785f-b200-2189bfbb1b12" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromMinorityShareholders_019e27cd-e14f-7cef-8117-4b4b0c4656e4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromMinorityShareholders"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e27cd-e14f-74f8-adbf-7b38cb42579b" xlink:to="loc_us-gaap_ProceedsFromMinorityShareholders_019e27cd-e14f-7cef-8117-4b4b0c4656e4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans_019fadc4-98ec-7797-a2c1-2af3ec116f0f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e27cd-e14f-74f8-adbf-7b38cb42579b" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans_019fadc4-98ec-7797-a2c1-2af3ec116f0f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019e27cd-e14f-72c7-b5f2-bf7e5970ab3b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_ProfitLoss_019e27cd-e14f-72c7-b5f2-bf7e5970ab3b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_019e27cd-e14f-770f-8623-62beb9d147fa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_019e27cd-e14f-770f-8623-62beb9d147fa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfLeasedAssetsNetOperatingLeases_019e27cd-e14f-79b9-8581-c5c11443182e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnSaleOfLeasedAssetsNetOperatingLeases"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_GainLossOnSaleOfLeasedAssetsNetOperatingLeases_019e27cd-e14f-79b9-8581-c5c11443182e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_019e27cd-e14f-7ec9-89ae-91a1b10492e8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_ShareBasedCompensation_019e27cd-e14f-7ec9-89ae-91a1b10492e8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019e27cd-e14f-78ad-a9ae-435dc1d2a445" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019e27cd-e14f-78ad-a9ae-435dc1d2a445" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_019e27cd-e14f-75ec-ab82-98ffe271837e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_019e27cd-e14f-75ec-ab82-98ffe271837e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wlfc_AccretionOfDeferredCostsAndDiscountsNotes_019e27cd-e14f-72fb-9b59-ffbbe922e3f7" xlink:href="wlfc-20260630.xsd#wlfc_AccretionOfDeferredCostsAndDiscountsNotes"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_wlfc_AccretionOfDeferredCostsAndDiscountsNotes_019e27cd-e14f-72fb-9b59-ffbbe922e3f7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductionRelatedImpairmentsOrCharges_019e27cd-e14f-7dc2-95fe-325c9750d416" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProductionRelatedImpairmentsOrCharges"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_ProductionRelatedImpairmentsOrCharges_019e27cd-e14f-7dc2-95fe-325c9750d416" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLeasePayments_019e27cd-e14f-7f92-b6ed-5405122fc719" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromLeasePayments"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_ProceedsFromLeasePayments_019e27cd-e14f-7f92-b6ed-5405122fc719" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnDerivativeInstrumentsNetPretax_019e27cd-e14f-7fd5-8bcb-9cdc06f83988" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnDerivativeInstrumentsNetPretax"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_GainLossOnDerivativeInstrumentsNetPretax_019e27cd-e14f-7fd5-8bcb-9cdc06f83988" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnSalesOfAssets_019e27cd-e14f-7341-ba6f-d64a2e746b1c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainsLossesOnSalesOfAssets"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_GainsLossesOnSalesOfAssets_019e27cd-e14f-7341-ba6f-d64a2e746b1c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_019e27cd-e14f-78f6-a598-a2459c41c326" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_019e27cd-e14f-78f6-a598-a2459c41c326" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForLoanLeaseAndOtherLosses_019e27cd-e14f-755e-8f27-e475bdf7f0d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProvisionForLoanLeaseAndOtherLosses"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_ProvisionForLoanLeaseAndOtherLosses_019e27cd-e14f-755e-8f27-e475bdf7f0d6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfBusiness_019e27cd-e14f-7cb6-816f-6ee46bc422f5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnSaleOfBusiness"/>
    <link:calculationArc order="14" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_GainLossOnSaleOfBusiness_019e27cd-e14f-7cb6-816f-6ee46bc422f5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostAmortization_019e27cd-e14f-7457-8814-aa299c86a893" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CapitalizedContractCostAmortization"/>
    <link:calculationArc order="15" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_CapitalizedContractCostAmortization_019e27cd-e14f-7457-8814-aa299c86a893" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInDeferredIncomeTaxes_019e27cd-e14f-747a-8f00-4ebbb38ae3e4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInDeferredIncomeTaxes"/>
    <link:calculationArc order="16" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_IncreaseDecreaseInDeferredIncomeTaxes_019e27cd-e14f-747a-8f00-4ebbb38ae3e4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_019e27cd-e14f-742a-97d2-7ef3282f0dc7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="17" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_019e27cd-e14f-742a-97d2-7ef3282f0dc7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_019e27cd-e14f-75dc-9d33-1f35f31cfa0c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="18" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_019e27cd-e14f-75dc-9d33-1f35f31cfa0c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_019e27cd-e14f-72f7-89eb-ec9dc7623a10" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets"/>
    <link:calculationArc order="19" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_019e27cd-e14f-72f7-89eb-ec9dc7623a10" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseDueFromAffiliates_019e27cd-e14f-7701-bb03-b62147c48151" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseDueFromAffiliates"/>
    <link:calculationArc order="20" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_IncreaseDecreaseDueFromAffiliates_019e27cd-e14f-7701-bb03-b62147c48151" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_019e27cd-e14f-74b8-a4f5-1d9938c8dc72" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities"/>
    <link:calculationArc order="21" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_019e27cd-e14f-74b8-a4f5-1d9938c8dc72" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wlfc_IncreaseDecreaseInMaintenanceReserves_019e27cd-e14f-7ba7-acc5-6b5575628c27" xlink:href="wlfc-20260630.xsd#wlfc_IncreaseDecreaseInMaintenanceReserves"/>
    <link:calculationArc order="22" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_wlfc_IncreaseDecreaseInMaintenanceReserves_019e27cd-e14f-7ba7-acc5-6b5575628c27" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInDepositOtherAssets_019e27cd-e14f-7dea-8db6-2d427b1dff74" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInDepositOtherAssets"/>
    <link:calculationArc order="23" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_IncreaseDecreaseInDepositOtherAssets_019e27cd-e14f-7dea-8db6-2d427b1dff74" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_019fadbe-a55d-7197-9314-a550ce7d2ee4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <link:calculationArc order="24" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_019fadbe-a55d-7197-9314-a550ce7d2ee4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInDueToAffiliates_019fadbe-a55d-7e16-9dc0-d03ff8d9334d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInDueToAffiliates"/>
    <link:calculationArc order="25" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7727-b9f0-7d88fd3be178" xlink:to="loc_us-gaap_IncreaseDecreaseInDueToAffiliates_019fadbe-a55d-7e16-9dc0-d03ff8d9334d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e27cd-e14f-7265-a70f-1556bcf400e5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7b88-a745-0fe6eea09c4b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e27cd-e14f-7265-a70f-1556bcf400e5" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e27cd-e14f-7b88-a745-0fe6eea09c4b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e27cd-e14f-7f90-b5c5-ffdf749595d7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e27cd-e14f-7265-a70f-1556bcf400e5" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e27cd-e14f-7f90-b5c5-ffdf749595d7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e27cd-e14f-7c28-b11f-7845d3f00c76" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e27cd-e14f-7265-a70f-1556bcf400e5" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e27cd-e14f-7c28-b11f-7845d3f00c76" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e27cd-e14f-7d95-8c60-217f85449c4f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfNotesReceivable_019e27cd-e14f-753f-aff2-1394110178a8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromSaleOfNotesReceivable"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e27cd-e14f-7d95-8c60-217f85449c4f" xlink:to="loc_us-gaap_ProceedsFromSaleOfNotesReceivable_019e27cd-e14f-753f-aff2-1394110178a8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfMachineryAndEquipment_019e27cd-e14f-7cfe-a62f-5dc364911629" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromSaleOfMachineryAndEquipment"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e27cd-e14f-7d95-8c60-217f85449c4f" xlink:to="loc_us-gaap_ProceedsFromSaleOfMachineryAndEquipment_019e27cd-e14f-7cfe-a62f-5dc364911629" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireEquipmentOnLease_019e27cd-e14f-72a2-a53a-09acb00de0b5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireEquipmentOnLease"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e27cd-e14f-7d95-8c60-217f85449c4f" xlink:to="loc_us-gaap_PaymentsToAcquireEquipmentOnLease_019e27cd-e14f-72a2-a53a-09acb00de0b5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireInterestInJointVenture_019e27cd-e14f-7128-aafc-4b67cf730d84" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireInterestInJointVenture"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e27cd-e14f-7d95-8c60-217f85449c4f" xlink:to="loc_us-gaap_PaymentsToAcquireInterestInJointVenture_019e27cd-e14f-7128-aafc-4b67cf730d84" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDivestitureOfBusinesses_019e27cd-e14f-76bd-a169-c6cd10b8e631" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromDivestitureOfBusinesses"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e27cd-e14f-7d95-8c60-217f85449c4f" xlink:to="loc_us-gaap_ProceedsFromDivestitureOfBusinesses_019e27cd-e14f-76bd-a169-c6cd10b8e631" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019e27cd-e14f-7542-981f-d72712af7bd6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e27cd-e14f-7d95-8c60-217f85449c4f" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019e27cd-e14f-7542-981f-d72712af7bd6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromCollectionOfNotesReceivable_019e27cd-e14f-7a32-92a6-2f631a5ba85f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromCollectionOfNotesReceivable"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e27cd-e14f-7d95-8c60-217f85449c4f" xlink:to="loc_us-gaap_ProceedsFromCollectionOfNotesReceivable_019e27cd-e14f-7a32-92a6-2f631a5ba85f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireNotesReceivable_019e8d61-08d4-7f2f-ab65-9b0e21260014" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireNotesReceivable"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e27cd-e14f-7d95-8c60-217f85449c4f" xlink:to="loc_us-gaap_PaymentsToAcquireNotesReceivable_019e8d61-08d4-7f2f-ab65-9b0e21260014" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLeasePaymentSalesTypeAndDirectFinancingLeasesInvestingActivity_019e8d61-08d4-7fd0-a75e-6e131a0939e8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromLeasePaymentSalesTypeAndDirectFinancingLeasesInvestingActivity"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e27cd-e14f-7d95-8c60-217f85449c4f" xlink:to="loc_us-gaap_ProceedsFromLeasePaymentSalesTypeAndDirectFinancingLeasesInvestingActivity_019e8d61-08d4-7fd0-a75e-6e131a0939e8" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://willislease.com/role/EquipmentHeldforOperatingLeaseandNotesReceivableScheduleofCarryingValuesDetails" xlink:type="simple" xlink:href="wlfc-20260630.xsd#EquipmentHeldforOperatingLeaseandNotesReceivableScheduleofCarryingValuesDetails"/>
  <link:calculationLink xlink:role="http://willislease.com/role/EquipmentHeldforOperatingLeaseandNotesReceivableScheduleofCarryingValuesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_019e27cd-e150-7f3a-b2e4-6b83dcfd48bf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_019e27cd-e150-711f-872f-a3bc837b636b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_019e27cd-e150-7f3a-b2e4-6b83dcfd48bf" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_019e27cd-e150-711f-872f-a3bc837b636b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_019e27cd-e150-70f4-91a1-bc71eb0fdb03" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_019e27cd-e150-7f3a-b2e4-6b83dcfd48bf" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_019e27cd-e150-70f4-91a1-bc71eb0fdb03" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://willislease.com/role/DebtObligationsScheduleofNotesPayableDetails" xlink:type="simple" xlink:href="wlfc-20260630.xsd#DebtObligationsScheduleofNotesPayableDetails"/>
  <link:calculationLink xlink:role="http://willislease.com/role/DebtObligationsScheduleofNotesPayableDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019e27cd-e21e-7ed3-85a6-c13754fd4d90" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019e27cd-e21e-7fbe-b607-8c851536fa3a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019e27cd-e21e-7ed3-85a6-c13754fd4d90" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019e27cd-e21e-7fbe-b607-8c851536fa3a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_019e27cd-e21e-77cf-910f-23a1e1c0a8b5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019e27cd-e21e-7ed3-85a6-c13754fd4d90" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_019e27cd-e21e-77cf-910f-23a1e1c0a8b5" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://willislease.com/role/DebtObligationsScheduleofPrincipalOutstandingDetails" xlink:type="simple" xlink:href="wlfc-20260630.xsd#DebtObligationsScheduleofPrincipalOutstandingDetails"/>
  <link:calculationLink xlink:role="http://willislease.com/role/DebtObligationsScheduleofPrincipalOutstandingDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019e27cd-e21e-7c48-96fa-47f395525c89" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_019e27cd-e21e-7929-bc11-ea289034a41d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_019e27cd-e21e-7c48-96fa-47f395525c89" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_019e27cd-e21e-7929-bc11-ea289034a41d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_019e27cd-e21e-72b2-855f-671ecb2fa3e4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_019e27cd-e21e-7c48-96fa-47f395525c89" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_019e27cd-e21e-72b2-855f-671ecb2fa3e4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_019e27cd-e21e-759e-af19-d968811d994f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_019e27cd-e21e-7c48-96fa-47f395525c89" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_019e27cd-e21e-759e-af19-d968811d994f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_019e27cd-e21e-7691-a056-c99932f29d71" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_019e27cd-e21e-7c48-96fa-47f395525c89" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_019e27cd-e21e-7691-a056-c99932f29d71" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_019e27cd-e21e-76ad-acaf-dd2248968ecb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_019e27cd-e21e-7c48-96fa-47f395525c89" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_019e27cd-e21e-76ad-acaf-dd2248968ecb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wlfc_LongTermDebtMaturityAfterYearFour_019e27cd-e21e-7255-b9fb-10a5360ed834" xlink:href="wlfc-20260630.xsd#wlfc_LongTermDebtMaturityAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_019e27cd-e21e-7c48-96fa-47f395525c89" xlink:to="loc_wlfc_LongTermDebtMaturityAfterYearFour_019e27cd-e21e-7255-b9fb-10a5360ed834" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://willislease.com/role/FairValueMeasurementsNonrecurringBasisDetails" xlink:type="simple" xlink:href="wlfc-20260630.xsd#FairValueMeasurementsNonrecurringBasisDetails"/>
  <link:calculationLink xlink:role="http://willislease.com/role/FairValueMeasurementsNonrecurringBasisDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSalesOfAssetsAndAssetImpairmentCharges_019e27cd-e21f-78df-9a59-4f67c6cd75e6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnSalesOfAssetsAndAssetImpairmentCharges"/>
    <link:loc xlink:type="locator" xlink:label="loc_wlfc_GainLossOnEquipmentHeldForLease_019e27cd-e21f-7d3f-9053-77088a88061b" xlink:href="wlfc-20260630.xsd#wlfc_GainLossOnEquipmentHeldForLease"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_GainLossOnSalesOfAssetsAndAssetImpairmentCharges_019e27cd-e21f-78df-9a59-4f67c6cd75e6" xlink:to="loc_wlfc_GainLossOnEquipmentHeldForLease_019e27cd-e21f-7d3f-9053-77088a88061b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wlfc_GainLossOnEquipmentHeldForSale_019e27cd-e21f-7ead-b730-fb3da56f3df4" xlink:href="wlfc-20260630.xsd#wlfc_GainLossOnEquipmentHeldForSale"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_GainLossOnSalesOfAssetsAndAssetImpairmentCharges_019e27cd-e21f-78df-9a59-4f67c6cd75e6" xlink:to="loc_wlfc_GainLossOnEquipmentHeldForSale_019e27cd-e21f-7ead-b730-fb3da56f3df4" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://willislease.com/role/EarningsPerShareDetails" xlink:type="simple" xlink:href="wlfc-20260630.xsd#EarningsPerShareDetails"/>
  <link:calculationLink xlink:role="http://willislease.com/role/EarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e27cd-e21f-733e-b443-47fa7962ab9f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019e27cd-e21f-7615-8f8e-c9f9c0a2a81d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e27cd-e21f-733e-b443-47fa7962ab9f" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019e27cd-e21f-7615-8f8e-c9f9c0a2a81d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_019e27cd-e21f-72f0-8b39-c06d4df1e85e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e27cd-e21f-733e-b443-47fa7962ab9f" xlink:to="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_019e27cd-e21f-72f0-8b39-c06d4df1e85e" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
