Mortgage Affordability Calculator
Free mortgage affordability calculator. Get instant results — no signup, no account. Plan and compare with confidence.
Use the Mortgage Affordability Calculator below.
Estimate how much you can afford to borrow for a home based on your income, debts, and down payment. Free mortgage affordability calculator.
How to use Mortgage Affordability Calculator
Enter income and debts
Input monthly income and existing debt payments.
Enter rate and term
Enter expected interest rate and loan term.
View results
See estimated max loan amount and monthly payment.
Features
- Instant results — no waiting or signup.
- Free to use — no hidden fees.
- No login or account required.
- Works on all devices — desktop, tablet, and mobile.
- Your data stays private — we do not store your inputs.
Why use this calculator
- Plan your finances with accurate estimates.
- Compare scenarios in seconds.
- Make informed decisions before you borrow or invest.
Supported browsers and devices
- All modern browsers (Chrome, Firefox, Safari, Edge).
- Mobile-friendly — use on phone or tablet.
- No app download — runs in your browser.
Frequently asked questions
Complete guide to Mortgage Affordability Calculator
How much house can I afford?
A mortgage affordability calculator works backward from the monthly payment you can afford to estimate the maximum loan amount. Lenders often use rules like 28% of gross monthly income for the housing payment (PITI — principal, interest, taxes, insurance) or 36% for total debt. You can use your own comfortable payment and see what loan size that supports.
Enter your maximum monthly payment, the expected interest rate, and the loan term (e.g. 30 years). The calculator returns the maximum principal you could borrow. Remember to leave room for property taxes, insurance, HOA fees, and maintenance when deciding how much payment you can afford.
Factors that affect affordability
- Income and stability: Lenders look at gross and net income and employment history.
- Debts: Existing loans and credit card payments reduce the amount available for a mortgage.
- Down payment: A larger down payment reduces the loan and often improves the rate.
- Interest rate: Lower rates mean a higher affordable loan for the same payment.
- Term: A longer term lowers the monthly payment but increases total interest.
Affordability rules of thumb
Many advisors suggest keeping housing costs under 28–30% of gross income and total debt payments under 36–40%. Use this calculator to see what loan size fits your budget, then use our mortgage calculator to see the exact EMI and total interest for that loan.
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Disclaimer
Our financial calculators are for informational and educational purposes only. Results are estimates based on the inputs you provide and standard formulas. They are not financial, tax, or legal advice. We do not store or share the numbers you enter.