Loan & Mortgage Calculator
Monthly payment, interest & schedule.
Runs entirely in your browser — nothing you enter is uploaded, logged, or tracked.
Enter a loan amount, annual interest rate, and term to get the monthly payment, the total interest you’ll pay, and the total cost — the standard amortized-loan math behind every mortgage and car loan.
Monthly payment —
—Total interest
—Total cost
—Payments
Frequently asked questions
How is the monthly payment calculated?
With the standard amortization formula: payment = P · r(1+r)ⁿ / ((1+r)ⁿ − 1), where P is the principal, r the monthly rate, and n the number of payments. A 0% rate is handled as simple division.
Does it store my numbers?
No — everything is computed locally in your browser; nothing you enter is sent or saved.