Loan Calculator (Monthly Payments & Amortization)
Calculate monthly loan payments, total interest and a full amortization schedule for any personal, auto or student loan.
100% free
No sign-up
Private · runs in your browser
How to use the free online loan calculator
- Enter the loan amount.
- Set the term (years) and annual interest rate.
- Read the monthly payment, total interest and total cost.
- Review the full amortization schedule below.
About this tool
Work out monthly repayments and total interest for any personal, auto or student loan. Adjust the amount, term and interest rate to see the amortization schedule — month by month breakdown of principal, interest and remaining balance. Compare repayment plans and find the fastest way to become debt-free.
Key features
- Monthly payment estimate
- Total interest & cost
- Full amortization schedule
- Compare terms & rates
Privacy first: every calculation and generation runs 100% locally in your web browser using the Web Crypto API. Your input never touches a server — nothing is stored, logged or sold.
Read the guide
Frequently asked questions
Using the standard amortization formula: P × r × (1+r)ⁿ ÷ ((1+r)ⁿ − 1), where r is the monthly rate and n the number of payments.
It shows every payment split into interest and principal, plus the remaining balance — so you can see exactly how much of each payment goes to the lender versus your balance.
No — this calculator covers principal and interest only. Add fees and insurance separately if your lender quotes them.
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