Loan Calculator
Estimate your monthly payment, total interest and total repayment cost
What is the Loan Calculator?
The Loan Calculator estimates your fixed monthly payment and total repayment cost for any installment loan — personal, auto, student or business — based on the loan amount, annual interest rate and repayment term. It's the same underlying math used for a car loan, personal loan or small business loan, so you can quickly compare offers from different lenders.
How to Use the Loan Calculator
- Enter the loan amount you plan to borrow (the principal).
- Enter the annual interest rate (APR) quoted by the lender.
- Enter the loan term in years.
- Read the result — your estimated monthly payment, total amount repaid, and total interest cost.
Loan Payment Formula
P = principal loan amount, r = monthly interest rate (annual rate ÷ 12), n = number of monthly payments (years × 12)
Example Calculation
For a $20,000 loan at 7.5% annual interest over 5 years (60 months), the monthly payment works out to approximately $401, with total interest of about $4,048 paid over the life of the loan — for a total repayment of roughly $24,048.
What Affects Your Loan Payment
- Loan amount — a larger principal directly increases the monthly payment.
- Interest rate — even a 1% difference can meaningfully change the total interest paid.
- Loan term — a longer term lowers the monthly payment but increases total interest paid over time.
Frequently Asked Questions
Results are estimates only, not a loan offer or financial advice — actual terms depend on your lender's underwriting.