House Affordability Calculator

Calculate your house affordability instantly with our free House Affordability Calculator. Accurate results in seconds — no sign-up required.

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How the House Affordability Calculator Is Calculated

This calculator uses the standard amortized-loan payment formula, M = P × [i(1+i)ⁿ] / [(1+i)ⁿ − 1], where P is the amount financed (your loan amount minus any down payment), i is the interest rate converted to a monthly rate, and n is the total number of monthly payments over the loan term.

Once the fixed monthly payment is known, it’s multiplied by the number of payments to find the total amount paid, and total interest is simply that total minus the amount financed — the same math lenders use to generate an amortization schedule.

About the House Affordability Calculator

Calculate your house affordability instantly with our free House Affordability Calculator. Accurate results in seconds — no sign-up required.