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United States — 30-year fixed mortgage

30 Year Mortgage Calculator

Estimate monthly payments on a 30-year US fixed-rate mortgage — the most common US home loan term.

Use this free 30-year mortgage calculator to estimate principal and interest on any US home price. A 30-year fixed loan offers lower monthly payments and is the most common US home loan.

Pick a preset loan amount below or adjust the inputs. Compare with our 15-year mortgage calculator.

Loan amount

$400,000.00

Principal & interest

$2,528.27

Total monthly payment

$3,028.27

Total interest

$510,177.95

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US mortgage payment guide

Components of a US mortgage payment

Most US homeowners pay principal and interest (P&I) plus property taxes and homeowners insurance, often through an escrow account. This calculator focuses on the loan math; you can add tax and insurance estimates separately.

Fixed-rate mortgages use standard amortization: early payments are mostly interest, and later payments shift toward principal. A 30-year loan at 7% pays more interest over life than a 15-year loan at the same rate.

How to use these tools

Start with the full mortgage calculator for a complete picture including down payment, tax, and insurance. Use the payment-only tool when you already know your loan amount and want P&I quickly.

The amortization schedule shows how each payment splits between interest and principal — useful for understanding equity build-up and total interest paid.

  • A 20% down payment typically avoids private mortgage insurance (PMI).
  • Compare 15-year vs 30-year terms — shorter terms save interest but raise monthly P&I.
  • Rate quotes vary by credit score, loan type (conventional, FHA, VA), and points paid.

Limitations

Results are estimates, not loan offers. Lenders apply underwriting, appraisal, and closing costs not modeled here. Consult a licensed mortgage professional before committing.

Frequently asked questions

?What is the monthly payment on a 30 year mortgage?
On a 30-year fixed loan, you spread payments over 360 months. A $400,000 loan at 6.5% is about $2,528/month P&I — use the calculator above with your exact numbers.
?What are my mortgage payments going to be?
Your payment depends on loan amount, interest rate, and term. Use this calculator with your home price, down payment, and rate quote — add property tax and insurance for a full housing payment estimate.
?How do I calculate my mortgage payment?
Monthly principal and interest uses the standard amortization formula: loan amount × [r(1+r)^n] ÷ [(1+r)^n − 1], where r is the monthly interest rate and n is the number of payments. Our calculator applies this automatically.
?What is included in PITI?
PITI stands for Principal, Interest, Taxes, and Insurance — the four parts of many monthly housing payments. HOA fees and PMI are separate.
?How does down payment affect my loan?
A larger down payment reduces the loan principal, which lowers monthly P&I and may eliminate PMI if you reach 20% equity at closing.
?Are property tax estimates accurate?
Tax rates vary by county and assessment rules. Use local assessor data or your realtor's estimate rather than a national average.