Calculate your monthly car payment and total cost
🚗 Auto Loans Through History From installment plans in the 1920s to today's complex amortization schedules, auto financing has evolved dramatically. The average car loan in 2025 carries $6,500 in interest over 72 months. Understanding your true monthly payment helps you avoid the "payment shock" that traps many buyers in unfavorable terms.
The total price of the vehicle before any down payment
Value of your current vehicle as trade-in
Annual percentage rate (APR). Typical rates: 4-8% for new, 8-15% for used
Auto loan interest is "front-loaded" — early payments put a much bigger share toward interest than principal, which is why paying even a little extra in the first year can meaningfully cut your total interest.
As an Amazon Associate we earn from qualifying purchases.
We do our best to link products that we genuinely believe are organic, no disposable junk, sustainable, and built to last.
An auto loan is a type of installment loan used to finance the purchase of a vehicle. Understanding how auto loans work helps you make informed decisions when financing a car purchase and potentially save thousands of dollars over the life of the loan.
Auto loan calculations are based on three key factors: the principal amount (the vehicle price minus your down payment), the interest rate, and the loan term. The monthly payment remains constant throughout the loan term, with a portion going toward principal and another portion toward interest. Early in the loan, more of your payment goes toward interest, while later payments contribute more to the principal balance.
Your credit score significantly impacts the interest rate you qualify for. Higher credit scores typically secure lower rates, potentially saving thousands over the loan term. The loan term affects both your monthly payment and total interest—shorter terms mean higher payments but less total interest. New cars generally have lower rates than used vehicles, and lenders often offer promotional rates on new car purchases.
While auto loan calculators provide accurate monthly payment estimates, they don't account for additional costs like registration, taxes, insurance, or maintenance. Some loans also include prepayment penalties that could affect your savings if you pay off the loan early. Always factor in these additional costs when budgeting for your vehicle purchase.
Use this calculator to compare different loan scenarios. Try adjusting the down payment, loan term, and interest rate to see how each affects your monthly payment and total cost. Consider getting pre-approved from multiple lenders to compare rates and ensure you're getting the best deal possible.
Example: Say you finance a $25,000 car with a $2,000 down payment at 6.5% APR over 60 months. Loan amount: 25,000 − 2,000 = $23,000. Plugging into the monthly amortization formula gives a payment of roughly $450/month, for about $4,000 in total interest over the loan.
No — this estimates principal and interest only. Registration, sales tax, and insurance are separate costs that vary by state and should be added on top of this payment when budgeting.
A shorter term raises your monthly payment but lowers your total interest paid, since you're borrowing the money for less time. A longer term does the opposite — smaller payments, more interest overall.
Not directly in the calculator — you enter the interest rate yourself. But your credit score is the biggest factor lenders use to set that rate, so a higher score generally means a lower rate to plug in.