FinanceToolsFree Loan and Mortgage Calculators
Fast, accurate, and completely free. Calculate your monthly mortgage or loan payment, see the full amortization schedule, and find out exactly how much interest you will pay — no sign-up required.
Popular calculators
Mortgage Payment Calculator
Free mortgage payment calculator. Estimate your monthly payment including principal, interest, taxes, and insurance, then see the full amortization schedule and total interest.
Loan Payment Calculator
Calculate the monthly payment for any amortizing loan — auto, personal, student, or business. See your payment, total interest, total cost, and the first-year payoff split.
Amortization Schedule Calculator
Generate a complete amortization schedule for any loan. See principal, interest, and remaining balance for every payment — and how extra monthly payments save interest and shorten the loan.
Learn how it works
How to Calculate Mortgage Payments (Step-by-Step)
Learn how to calculate your monthly mortgage payment by hand, including principal, interest, taxes, and insurance. Step-by-step example with the full formula.
Loan Payment Formula Explained (with Examples)
Understand the loan payment formula M = P × r × (1 + r)^n / ((1 + r)^n − 1), with a worked example and tips to reduce total interest.
How to Read an Amortization Schedule
Learn to read an amortization schedule: payment number, principal, interest, and balance. See how extra payments save interest and shorten your loan.
Why use a loan calculator?
Before you borrow, you need to know what the monthly payment will be and what the loan really costs. A few minutes with a calculator can reveal the difference between a 15-year and 30-year mortgage, show how much a 1% rate change affects your payment, or prove how much an extra payment each month can save you in interest.
All of our calculators run entirely in your browser. Your numbers never leave your device, nothing is stored, and there is no account to create.
Frequently asked questions
What is the difference between a mortgage payment and a loan payment?
A mortgage payment usually includes property taxes and homeowners insurance in addition to principal and interest. Other installment loans — auto, personal, student — typically include only principal and interest.
Are these calculators accurate?
Yes, for fixed-rate loans. They use the standard amortization formula used by lenders. Real payments can still differ if you have adjustable rates, fees, PMI, or unusual terms.
Do I need to create an account?
No. Every calculator on this site runs in your browser. There are no accounts, no emails, and no stored data.