Used Car Loan Calculator
Calculate your monthly payment and total interest for a used car loan. Input the vehicle price, down payment, loan term, and interest rate to see a detailed breakdown.
Published by:
isCalculator Editorial Team
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How to use this tool?
Follow these steps to calculate your used car loan:
- Enter the Vehicle Price – Input the total price of the car in dollars (e.g., 20000).
- Enter the Down Payment – Input any amount you pay upfront (e.g., 4000). Must be less than the vehicle price.
- Enter the Loan Term – Specify the loan duration in months (between 1 and 84).
- Enter the Annual Interest Rate – Input the yearly interest rate as a percentage (e.g., 6.5 for 6.5%). Range is 0% to 30%.
- Click "Calculate" – The calculator will compute:
- Loan Amount (vehicle price minus down payment)
- Monthly Payment – Your estimated monthly installment
- Total Interest – The total interest paid over the loan term
- Review the Formula Explanation – Below the results, you'll see how the calculation was performed.
Note: All monetary values are in US dollars. Ensure all inputs are positive numbers. If you see an error, check that the down payment is less than the vehicle price and all fields are filled correctly.
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Frequently Asked Questions
A used car loan calculator estimates your monthly payment and total interest based on the vehicle price, down payment, loan term, and interest rate.
The monthly payment is calculated using the standard amortization formula: M = P * [r(1+r)^n] / [(1+r)^n - 1], where P is the loan amount, r is the monthly interest rate, and n is the number of months.
Interest rates vary based on credit score, lender, and market conditions. Typically, rates range from 3% to 15% for used cars. A lower rate saves you money on interest.
