# Down Payment Calculator > Convert a down payment between money and percent, then estimate loan and cash needed. Page: https://askcalculators.com/calculator/down-payment-calculator/ Definition: https://askcalculators.com/calculator/down-payment-calculator/definition.json JSON Schema: https://askcalculators.com/calculator/down-payment-calculator/schema.json Version: 20.1.0 Maintained by: AskCalculators (software project; not a credentialed reviewer) Qualified review: pending. Automated checks do not establish professional approval. Page status: Live Review status: Pending ## Use Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation. Example: https://askcalculators.com/calculator/down-payment-calculator/?homePrice=400000&mode=percent&downPaymentValue=20&closingCostRate=3 ## Inputs - homePrice: Home price; type=money; required; default=400000; min=1 - mode: Enter down payment as; type=select; required; default=percent; values=percent|amount - downPaymentValue: Down payment value; type=number; required; default=20; min=0 - closingCostRate: Estimated closing costs; type=percent; optional; default=3; min=0; max=20 ## Outputs - cashNeeded: Estimated cash needed; format=currency; primary - downPaymentAmount: Down payment; format=currency - downPaymentPercent: Down payment percent; format=percent - loanAmount: Estimated loan amount; format=currency - closingCosts: Estimated closing costs; format=currency ## Formula Loan amount = home price − down payment; cash needed = down payment + closing costs ## Rules - Empty optional inputs are undefined, not zero. - Hidden conditional inputs are ignored. - Do not invent missing required inputs.