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Mortgage Affordability Calculator
How much house can you afford? Enter your income, monthly debts, down payment, and interest rate to see the maximum home price that keeps you within safe debt-to-income limits.
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How This Calculator Works
This calculator determines the maximum home price you can afford using the 28/36 rule. Lenders typically want your housing costs below 28% of gross income (front-end ratio) and total debts below 36% (back-end ratio).
Formula: Max Monthly Housing = Gross Monthly Income × 0.28 (front-end) or Gross Monthly Income × 0.36 – Other Debts (back-end). The lower of the two determines your maximum.
Assumptions & Limitations
- • Uses standard 28/36 DTI guidelines; some loan programs allow higher ratios.
- • Does not account for closing costs, moving expenses, or ongoing maintenance.
- • Property tax and insurance rates are estimated averages.
- • Your actual qualification depends on credit score, employment history, and lender requirements.