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Mortgage Calculator

Calculate monthly mortgage payments, total interest, and loan payoff.

Monthly Payment

1,896.2

Total Interest

382,633.47

Total Paid

682,633.47

Related Guide

Mortgage Calculator: 15-Year vs. 30-Year Explained

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About This Tool

Free mortgage calculator — enter your home loan amount, annual interest rate, and loan term to instantly calculate your estimated monthly payment, total interest paid over the life of the loan, and the total payoff amount. Buying a home is one of the largest financial decisions most people make, and the monthly payment shown by a lender is only one part of the picture — this tool also shows how much of the loan's total cost is interest versus principal, which varies enormously between a 15-year and a 30-year term at the same rate. Use it to compare different loan terms, rates, or down payment scenarios before talking to a lender. Runs entirely in your browser using the standard amortization formula — no application, no credit check, no data sent anywhere.

How to Use

  1. 1

    Enter the loan amount

    Type the mortgage principal (home price minus down payment).

  2. 2

    Enter rate and term

    Add the annual interest rate and loan term in years (e.g., 15 or 30).

  3. 3

    See your payment breakdown

    View your estimated monthly payment, total interest, and total payoff amount.

Frequently Asked Questions

What is the mortgage payment formula?+
M = P × [r(1+r)^n] / [(1+r)^n - 1], where P is the loan principal, r is the monthly interest rate, and n is the total number of monthly payments.
Does this include property tax and insurance?+
No, this calculates only principal and interest (P&I) on the loan itself. Actual monthly housing costs are usually higher once property tax, homeowners insurance, and any HOA fees are added.
Why does a 15-year mortgage have a higher payment but lower total cost?+
A shorter term spreads the same principal over fewer payments, raising the monthly amount, but it also means far less total interest accrues over the life of the loan compared to a 30-year term.

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