Monthly Payment on a $400,000 Mortgage
A $400,000 mortgage covers a typical mid-market home in much of the country. At a 7% rate over 30 years, this is what the principal-and-interest payment works out to — and how much interest the long term adds. Everything runs locally in your browser.
Monthly payment
$2,661.21
Total interest
$558,036
Total paid
$958,036
How the rate changes the payment
Even half a percentage point moves the monthly payment on a $400,000 mortgage. At 30 years:
- 6% APR$2,398.20/mo
- 6.5% APR$2,528.27/mo
- 7% APR$2,661.21/mo
- 7.5% APR$2,796.86/mo
- 8% APR$2,935.06/mo
FAQ
What is the monthly payment on a $400,000 mortgage at 7%?
It is $2,661.21 per month for principal and interest, assuming a fixed 7% APR over 30 years (360 payments). Across the full term you would pay about $558,036 in interest on top of the $400,000 borrowed — roughly $958,036 in total.
How is the monthly payment calculated?
It uses the standard amortisation formula: M = P·r / (1 − (1 + r)⁻ⁿ), where P is the amount borrowed, r is the monthly rate (annual rate ÷ 12) and n is the number of months. Every payment is the same, but early payments are mostly interest and later ones mostly principal.
Does this include taxes and insurance?
No. The figure is principal and interest only. A real mortgage may add property taxes, homeowners insurance and (if applicable) PMI, so your actual monthly cost can be higher.
Want an amortisation schedule and a payoff chart? Use the full Loan Calculator. Paying down debt? See snowball vs. avalanche.