Mortgage Calculator - Monthly Payment, Interest & Amortization Schedule
Estimate your monthly mortgage payment, total interest, and full amortization schedule
How it works
- 1Enter loan details
Home price, down-payment percentage, annual interest rate (APR), and loan term in years.
- 2See your monthly payment
The tool computes your monthly principal-and-interest payment along with total interest and total amount paid.
- 3View amortization schedule
Click to expand the month-by-month schedule showing how each payment splits between principal and interest and the remaining balance.
About Mortgage Calculator - Monthly Payment, Interest & Amortization Schedule
Free mortgage calculator with amortization schedule. Enter home price, down payment, interest rate (APR), and loan term to instantly see your monthly principal-and-interest payment, total interest paid over the life of the loan, and a month-by-month breakdown of how each payment splits between principal and interest. Runs entirely in your browser. Mortgage Calculator - Monthly Payment, Interest & Amortization Schedule on 712 Tools runs entirely inside your browser using modern JavaScript APIs - no server ever sees your data. That means instant results, complete privacy, and no upload limits.
Whether you need to estimate your monthly mortgage payment, total interest, and full amortization schedule for a debugging session, a quick sanity check, or a production incident, this tool is free to use as many times as you need. There are no watermarks, no sign-up, and no ads inside the tool itself.
Frequently asked questions
Does this include taxes and insurance?
No - this calculator shows principal and interest only. Property taxes, homeowners insurance, HOA fees, and PMI are additional costs your lender will include in the escrow portion of your monthly payment.
How is the monthly payment calculated?
M = P × r × (1+r)ⁿ / ((1+r)ⁿ − 1), where P is loan amount, r is the monthly interest rate (annual APR ÷ 12), and n is the total number of payments.
What is an amortization schedule?
A month-by-month table showing how much of each payment goes to principal versus interest, plus the remaining loan balance. Early payments are mostly interest; later payments are mostly principal.
Is my financial data uploaded?
No. All calculations run entirely in your browser.
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