Estimate your monthly mortgage payment including principal and interest based on loan amount, rate, and term.
Mortgage Calculator
Financial
Inputs
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Enter the full purchase price of the home.
Enter your down payment amount.
Input the annual interest rate from your lender.
Set the loan term (30 years is most common).
Click Calculate to see your monthly payment breakdown.
A mortgage payment is calculated using the amortization formula. Your monthly payment covers interest (rate × remaining balance) and principal reduction. Early in the loan, most of your payment goes toward interest; over time more goes to principal.
Conventional loans typically require 3–20% down. Putting 20% down avoids Private Mortgage Insurance (PMI), which can add $100–$300/month.