Car Payment Calculator

Your monthly payment is calculated using the standard amortization formula, which factors in your total loan amount, annual interest rate (APR), and loan term in months. The formula is: M = P × [r(1+r)^n] / [(1+r)^n - 1], where P is the principal, r is the monthly interest rate, and n is the number of payments.

A good auto loan rate depends on your credit score, loan term, and whether the vehicle is new or used. As a general guide, borrowers with excellent credit (720+) may qualify for rates below 5%, while those with fair credit might see rates of 8–15%. Shopping multiple lenders — including credit unions — can help you secure the best rate.

Your trade-in value directly reduces the amount you need to finance. If you still owe money on your current vehicle, that balance is added back to the loan. For example, a $10,000 trade-in with $3,000 still owed results in a net trade-in credit of $7,000, lowering your loan principal.

A shorter loan term (e.g., 36 months) means higher monthly payments but significantly less interest paid overall. A longer term (e.g., 72–84 months) reduces monthly payments but increases total interest cost. Many financial experts recommend keeping your loan term to 60 months or less to minimize interest and avoid being underwater on the loan.

A common guideline is to keep your total monthly car payment at or below 10–15% of your after-tax take-home pay. This helps ensure the purchase remains affordable alongside other living expenses and savings goals.

They can be, depending on your lender and preference. Some buyers choose to roll sales tax, title, and registration fees into the loan to reduce upfront out-of-pocket costs, while others pay them at the time of purchase. Rolling fees into the loan increases the total amount financed and the interest you'll pay over time.

An amortization schedule breaks down each monthly payment into its interest and principal components over the life of the loan. In early months, a larger portion of your payment goes toward interest. As the balance decreases, more goes toward principal. Reviewing this schedule helps you understand exactly how your loan is paid off.

Manufacturer cash rebates and dealer incentives reduce the effective purchase price of the vehicle before calculating your loan. Entering your rebate amount in the calculator automatically reduces the financed amount, which lowers both your monthly payment and total interest paid.