Loan & Mortgage Payment Calculator

Calculate monthly loan payments, total interest costs, and view complete amortization estimates.

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Loan Amount ($):

Annual Interest Rate (%):

Loan Term (Years):

$1,580.17Monthly Payment

$318,861.78Total Interest Paid

$568,861.78Total Amount Paid

Loan Breakdown & Summary

Principal (44%)

Interest (56%)

For a 30-year fixed loan of $250,000 at 6.5% interest, you will make 360 monthly payments.

The Financial Mathematics of Amortization & Fixed-Rate Loans

A fixed-rate amortizing loan is the standard debt financing structure for residential mortgages, automobile loans, and business term facilities. Under this structure, the borrower pays an equal monthly installment throughout the loan term, with the proportion of interest versus principal shifting over time.

The Standard Amortization Formula

Monthly Payment (M) = P * [ r(1 + r)^n ] / [ (1 + r)^n - 1 ]

P: Principal loan balance
r: Monthly periodic interest rate (Annual Interest Rate / 12 / 100)
n: Total number of scheduled monthly payments (Years * 12)

Frequently Asked Questions (FAQ)

Making bi-weekly payments, adding extra principal contributions each month, or refinancing to a shorter term substantially reduces the total interest paid.

This tool computes Principal and Interest (P&I). Full monthly housing costs (PITI) also include local property taxes, homeowners insurance, and private mortgage insurance (PMI).