Mortgage Calculator USA
Estimate mortgage payments from home price, down payment, rate, and term.
Quick answer
Mortgage Calculator USA helps estimate the result from your inputs in the browser. Use the output as a planning number, then compare it with your records, provider terms, or official guidance before making a final decision.
This calculator is for estimates only. Actual mortgage terms, taxes, insurance, and lender rules can change your payment.
Calculator
Results update as you type
Monthly payment
Modeled interest equals 102.6% of principal over the entered term. Taxes, insurance, fees, and rate changes are excluded.
Principal compared with estimated interest.
Breakdown
Lower-rate scenario
Blue is A, green is B.
Example
A $450,000.00 home with $90,000.00 down at 6.5% over 25 years gives a payment near $2,430.75.
Formula
The math behind the result
How it works
A clean flow from input to answer
- 1Enter the home price and down payment.
- 2Set the interest rate and term in years.
- 3Review monthly payment and total interest instantly.
FAQ
Common questions
Does this include property tax?
No. It focuses on the loan payment itself.
Can I use it for refinance planning?
Yes. It works as a fast estimate for a mortgage balance.
Does it store my inputs?
No. Everything stays in the browser.
Is extra principal supported?
This first version is a clean baseline without extra principal inputs.
Is it mobile friendly?
Yes. The layout is responsive.
Separate principal and interest from the full housing cost
The calculated payment amortizes the borrowed principal over the chosen term at a fixed annual rate. A larger down payment reduces principal, while a longer term usually lowers the monthly amount but increases total interest. Compare both payment and lifetime interest before choosing a scenario.
The displayed loan payment is not the complete amount a homeowner may owe each month. Property tax, homeowner insurance, mortgage insurance, condominium fees, utilities, repairs, and lender escrow can materially increase the cash requirement. Build those items into a separate affordability budget.
Rates quoted by lenders can include points, fees, or different compounding conventions. Use the annual percentage rate and official loan estimate when comparing offers, and confirm whether a variable or adjustable rate can change after an introductory period.
For refinancing, include closing costs and the remaining balance rather than the original purchase price. A lower payment is not automatically a saving if the term restarts for many years. Compare break-even time, total future interest, and how long you expect to keep the property.