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Auto Loan Calculator
Estimate your monthly auto loan payment, total interest, and total cost based on the vehicle price, down payment, and loan terms.
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How auto loan payments are calculated
An auto loan payment depends on the amount financed, the interest rate, and the loan term. Sales tax, down payment, and trade-in value all affect how much you actually need to borrow.
How this calculator works
Enter the vehicle price, down payment, trade-in value, sales tax rate, interest rate, and loan term. The calculator first determines the amount financed (price plus tax, minus down payment and trade-in), then applies the standard loan amortization formula to find your monthly payment, total interest, and total cost.
This is an estimate for general planning. Actual loan terms, fees, and taxes vary by lender and location.
Last reviewed August 2026