House Affordability Calculator

Calculate how much house you can afford based on income, debts, and down payment.

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How It Works

Lenders use two key ratios: the front-end ratio (housing costs / gross income, max 28%) and back-end ratio (total debts / gross income, max 36%). The lower of these two determines your maximum monthly payment. A 20% down payment avoids PMI (private mortgage insurance), which adds $100-300/month on a typical loan. Pre-approval from a lender gives you a concrete number.

Last updated: March 15, 2026 ยท Reviewed by the MovingCalcs Editorial Team