Mortgage Calculator

Calculate your monthly payment, total cost, and full amortization schedule. Results update instantly as you type.

Loan Details

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Formula

M = P × [r(1+r)ⁿ] / [(1+r)ⁿ−1]
  • M = Monthly payment
  • P = Principal (loan amount)
  • r = Monthly interest rate (annual ÷ 12)
  • n = Number of payments (years × 12)
Monthly Payment
$1,516.96
Loan Amount
$240,000.00
Total Interest
$306,106.77
Total Cost
$546,106.77
Home Price$300,000.00
Down Payment$60,000.00
Loan Principal$240,000.00
Interest Rate6.5% per year
Loan Term30 years (360 payments)
Monthly Payment$1,516.96
Total of Payments$546,106.77
Total Interest Paid$306,106.77

Understanding Your Mortgage

Principal vs. Interest

Early payments are mostly interest. As the balance decreases, more of each payment goes toward principal. This is called front-loaded amortization.

Rate Impact

Even a 0.5% rate difference on a $300k loan can mean tens of thousands of dollars over 30 years. Always compare lender APRs, not just rates.

Extra Payments

Making one extra payment per year on a 30-year mortgage can cut years off your term and save significant interest — check with your lender for prepayment penalties.