Auto Loan Calculator
Estimate your monthly car payment from purchase price, trade-in, incentives, down payment, rate, and term.
About this calculator
Estimates your monthly auto loan payment using the standard amortization formula. The loan amount equals the vehicle price minus your trade-in, any dealer incentives, and your down payment. Each month interest accrues on the remaining balance at your APR divided by 12, and a fixed payment covers both interest and a slice of principal until the loan is paid off. Taxes, registration, and insurance are not included.
Field explanations
- Vehicle price
- Negotiated out-the-door price of the vehicle, before trade-in or incentives.
- Trade-in value
- Credit the dealer is applying for your current vehicle.
- Dealer incentives
- Manufacturer rebates or cash-back offers applied to the price.
- Down payment
- Cash you pay up front. Reduces the amount you need to finance.
- Interest rate (APR)
- Annual percentage rate on the loan. Divided by 12 to compute the monthly interest charge.
- Loan term
- Length of the loan in months. Common auto terms range from 36 to 84 months — longer terms lower the payment but increase total interest.