Free Mortgage Calculators 2026

Calculate your monthly mortgage payment, how much house you can afford, refinance savings, amortization schedule, and rent vs. buy comparison. No sign-up required.

✓ Updated for 2026 Rates ✓ No Sign-Up Required ✓ 100% Free

Choose Your Calculator

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Mortgage Payment Calculator

Calculate your monthly payment including principal, interest, taxes, insurance, and PMI.

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Home Affordability Calculator

Find out how much house you can afford based on income, debt, and down payment.

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Mortgage Refinance Calculator

See if refinancing saves you money. Compare old vs. new loan terms and break-even point.

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Amortization Schedule Calculator

View your full payment schedule year by year. See principal vs. interest breakdown.

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Compare Mortgage Loans

Side-by-side comparison of two loan options. See total cost difference over the loan term.

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Rent vs. Buy Calculator

Should you rent or buy? Compare total costs over time with appreciation and investment returns.

Mortgage Payment Calculator

Calculate your monthly mortgage payment including principal, interest, property taxes, homeowners insurance, and PMI. See the full breakdown.

20% down payment
Current 30-year fixed average: ~6.5% (2026)
National average: ~1.1% of home value annually
National average: ~$1,500/year
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Enter your home price and loan details to calculate your monthly payment

Home Affordability Calculator

Find out how much house you can afford based on your income, monthly debts, down payment, and current interest rates.

Car loans, student loans, credit cards, child support (exclude rent/mortgage)
Includes mortgage + all other debts
National average: 1.1% — varies by state
~0.35% of home value annually
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Enter your income and debts to see how much house you can afford

Mortgage Refinance Calculator

See if refinancing your mortgage saves money. Compare your current loan against a new one and find your break-even point.

Current Loan


New Loan

Typically 2-5% of loan amount
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Enter your current and new loan details to see if refinancing saves money

Amortization Schedule Calculator

View your complete mortgage payment schedule year by year. See how much goes to principal vs. interest over the life of your loan.

Optional: See how extra payments shorten your loan
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Enter your loan details to generate the full amortization schedule

Compare Mortgage Loans

Side-by-side comparison of two mortgage options. See total cost, monthly payment difference, and which saves more over time.

Loan A

Loan B

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Enter two loan options to compare side-by-side

Rent vs. Buy Calculator

Should you rent or buy? Compare total costs over time including home appreciation, rent increases, and investment returns on your down payment.

Buying

~1% of home value annually
Historical average: ~3-4%

Renting


Investment

Return if you invested the down payment instead
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Enter buying and renting details to see which is better for you

Frequently Asked Questions

How is my monthly mortgage payment calculated?

Your monthly payment is calculated using the standard amortization formula: M = P[i(1+i)^n]/[(1+i)^n-1], where P is the loan amount, i is the monthly interest rate, and n is the number of payments. This calculator also adds property taxes, insurance, and HOA fees to show your total monthly housing cost.

What is PMI and when do I need it?

Private Mortgage Insurance (PMI) is required when your down payment is less than 20% of the home's value. PMI typically costs 0.3% to 1.5% of the loan amount annually. This calculator automatically includes PMI estimates for down payments under 20%.

How much should I put down on a house?

While 20% is the traditional recommendation (to avoid PMI), many buyers put down less. FHA loans allow as little as 3.5%, and some conventional loans allow 3%. However, a larger down payment reduces your monthly payment and total interest paid. Use our affordability calculator to see what works for your budget.

What is a good debt-to-income (DTI) ratio?

Lenders typically prefer a front-end DTI (housing costs only) under 28% and a back-end DTI (all debts) under 36%. FHA loans allow up to 43%, and some lenders go up to 50% for well-qualified borrowers. Lower DTI ratios improve your chances of approval and better rates.

When does refinancing make sense?

Refinancing typically makes sense when you can reduce your rate by at least 0.5-1%, plan to stay in the home long enough to break even on closing costs (usually 2-5 years), or want to switch from an adjustable to fixed rate. Use our refinance calculator to find your specific break-even point.

How much are closing costs?

Closing costs typically range from 2% to 5% of the loan amount. They include loan origination fees, appraisal fees, title insurance, attorney fees, and prepaid items like property taxes and insurance. On a $300,000 loan, expect $6,000-$15,000 in closing costs.

What is an amortization schedule?

An amortization schedule shows every payment over the life of your loan, breaking down how much goes to principal (reducing your balance) vs. interest. Early payments are mostly interest; later payments are mostly principal. Making extra payments toward principal can significantly shorten your loan term.

Should I rent or buy a home?

It depends on your financial situation, time horizon, and local market. Buying builds equity and offers tax benefits but requires a down payment and maintenance costs. Renting offers flexibility and lower upfront costs but doesn't build equity. Use our rent vs. buy calculator with your specific numbers to compare.