Calculate your monthly car loan payment, total interest, and amortization schedule. Free auto loan calculator. No signup required.
Monthly car payment is one number — total cost of the loan is what matters. A 72-month loan at 7% APR on $30,000 costs $6,600 in interest — more than a used car. Our calculator shows your monthly payment, total interest paid, and full amortization schedule so you can compare loan terms and see the real cost of stretching payments.
On $30,000 car loan at 7% APR: 36 months: $926/month, total interest $3,336. 48 months: $717/month, total interest $4,416. 60 months: $594/month, total interest $5,640. 72 months: $513/month, total interest $6,936. 84 months: $452/month, total interest $7,968. Longer terms reduce monthly payment but significantly increase total cost — and increase time underwater (owing more than car is worth).
Average auto loan rates in 2026 by credit score (new car): Excellent 720+: 5.5-6.5% APR. Good 680-719: 6.5-8% APR. Fair 640-679: 9-12% APR. Poor under 640: 14-20%+ APR. Used car rates typically run 1-3% higher than new car rates for same credit score. Credit unions typically offer rates 1-2% lower than dealership financing.
For competitive auto loan rates under 6.5% APR: aim for 720+ credit score. 680-719 still qualifies for reasonable rates. Below 660 expect rates above 9-10% which dramatically increases total cost. On $25,000 loan: difference between 6% and 15% APR over 60 months is $6,800 in additional interest. Improving credit before car shopping is worth the wait.
Pay cash if: you can afford it without depleting emergency fund, the cash is not earning more than loan APR elsewhere. Finance if: loan APR is low (under 5%) and you can invest the cash at higher return, or preserving cash flow is important. At 7%+ APR: paying cash or making large down payment to minimize financed amount almost always makes mathematical sense.
Financial guidelines suggest car payment should not exceed 15% of monthly take-home pay. On $4,000/month take-home: maximum $600/month payment. On $6,000/month: maximum $900/month. Total transportation costs including insurance and fuel should stay under 20% of take-home. Many Americans are over-extended on car payments — the average new car payment in 2026 exceeds $750/month.
Yes — every FreeFixo tool, including the Car Loan Calculator — Monthly Payment and Total Interest Cost, is 100% free with no paywall, no premium tier, and no usage limits. You do not need to create an account, enter a credit card, or share an email.
The Car Loan Calculator — Monthly Payment and Total Interest Cost uses the same formulas, rates, and reference data that financial planners, professionals, and government sources publish. Results are estimates intended for planning and education — for situations involving large sums or legal consequences, confirm with a qualified professional before acting.
No signup is ever required. The Car Loan Calculator — Monthly Payment and Total Interest Cost runs entirely in your browser — your inputs are never sent to a server, and we do not store, track, or share your data. Open it, get your answer, close the tab.