How Mortgage Payments Are Calculated
A standard fixed-rate mortgage payment is calculated
using the loan amount, monthly interest rate, and total
number of monthly payments.
M = P × [ r(1 + r)ⁿ ] ÷ [ (1 + r)ⁿ − 1 ]
M = monthly payment, P = loan principal,
r = monthly interest rate, and n = number of payments.
Example
Suppose you borrow $300,000 with a
6.5% fixed interest rate for
30 years.
Loan Amount
$300,000
Interest Rate
6.5%
Loan Term
30 years
Monthly Payment
≈ $1,896
This example represents principal and interest only.
Taxes, insurance, HOA fees, and other housing costs may
increase the actual monthly payment.