Car Loan Calculator - Estimate Auto Payments in United States

Estimate monthly car payments, total interest and amortization using your own APR assumptions. Educational calculator only; not a lender quote or approval tool.

Estimate monthly car payments, total interest and amortization using your own vehicle price, down payment, APR and term assumptions. This educational calculator is for comparison only; it is not a lender quote, loan approval tool, or personalized financial advice.

How to use the calculator

Enter the vehicle price, down payment, loan term, and APR. Run the calculation once with the dealer offer, once with a bank or credit union preapproval, and once with a shorter term. The most useful comparison is usually total interest, not just monthly payment.

APR matters

The Consumer Financial Protection Bureau explains that APR is one of the most important measures of the cost of borrowing and is useful for comparing auto loans. Make sure you compare APR to APR across lenders.

Down payment and loan term

A larger down payment reduces the amount financed. A shorter loan term usually increases the monthly payment but lowers total interest. A longer term may make the payment easier but can increase interest and negative equity risk.

What this estimate does not include

The calculator may not include taxes, title, registration, lender fees, dealer add-ons, insurance, maintenance, early payoff terms, or state-specific rules. Add those costs before deciding what you can afford.

Sources

Reference: CFPB auto loan key terms.

Car Loan Calculator - Estimate Auto Payments in United States

Frequently Asked Questions

1. How can I lower the total cost of a car loan?

There are four main levers: a larger down payment, a shorter loan term, a lower APR (often improved by a higher credit score or by getting preapproved at a credit union or fintech before visiting the dealer), and refinancing once your credit profile improves. The Consumer Financial Protection Bureau recommends comparing APR — not just monthly payment — across at least three lenders before signing.

2. What is a car loan calculator?

A car loan calculator estimates your monthly payment, total interest, and total cost using the vehicle price, down payment, loan term, and APR. It is an educational tool that lets you compare scenarios — for example, a 48-month versus 60-month term — before talking to a lender. It does not replace a lender disclosure or guarantee approval.

3. How does interest rate affect my car loan?

Higher rates mean bigger payments. For a $20K loan over 48 months, 5% costs $2,500 in interest, while 8% jumps to $4,200 (Experian data).

4. Should I choose a new or used car loan?

New cars have lower rates (5.5% in 2024) but lose 20-30% value fast (KBB). Used cars hit 8-10% rates (Edmunds) but save upfront – it’s a trade-off.

5. Can my credit score change my loan?

Yes! A 720+ score gets ~4.5% rates, while 620 pays 8% – a $1,900 difference on $20K over 48 months. Boost it to save.

6. What’s the catch with long-term loans?

Longer terms (72 months) add $1,300 more interest on a $20K loan at 5% vs 48 months. Shorter terms cut costs.

7. How does refinancing a car loan work?

Refinancing swaps your rate or term. Drop 6% to 4% on $20K, save $1,000 over 48 months (TrueCar). Timing matters as rates rise.

8. Are there extra costs beyond the loan?

Yep – fuel, insurance, and repairs average $2,000/year (AAA). For a $20K car, that’s $10K over 5 years on top of payments.

9. How does leasing compare to financing a car?

Leasing typically means lower monthly payments because you only pay for the vehicle's depreciation during the lease term, plus interest and fees. However, you do not own the vehicle at the end, mileage caps apply (often 10,000–15,000 miles per year), and excess wear charges are common. Financing builds equity and ownership but usually means higher monthly payments. Compare the total cost of leasing for the same period against financing and selling.