Loans

Auto Loan Calculator

Calculate your monthly car payment and total loan cost before you visit the dealership.

Instant Results
No Data Stored
100% Free

What Is an Auto Loan Calculator?

An auto loan calculator estimates your monthly car payment based on the vehicle price, down payment, interest rate, and loan term. Knowing your payment before you negotiate puts you in a stronger position at the dealership and prevents you from overextending your budget on a depreciating asset.

How to Use This Calculator

1

Enter the Vehicle Price

Input the total purchase price including any dealer fees, sales tax, or add-ons you expect to finance.

2

Set Your Down Payment

Enter the cash amount you will put down. A larger down payment reduces the financed amount and may qualify you for a better rate.

3

Input the Interest Rate

Enter the APR from your pre-approval or dealer offer. Get pre-approved through your bank or credit union before visiting the dealer for leverage.

4

Choose the Loan Term

Select your repayment period. Shorter terms cost less in interest but have higher payments. Avoid terms longer than 60 months to prevent being underwater on the loan.

Key Concepts

Depreciation

New cars lose 15-25% of their value in the first year. Longer loan terms increase the risk of owing more than the car is worth (being "underwater" or "upside-down").

Total Cost of Ownership

Beyond the loan, budget for insurance, fuel, maintenance, and registration. Total annual ownership costs average $10,000-$12,000.

Pre-Approval Advantage

Getting pre-approved from a bank or credit union before shopping gives you a rate ceiling. The dealer can try to beat it, but you have a guaranteed fallback.

The 20/4/10 Rule

20% down, 4-year term max, and total transportation costs under 10% of gross income. This framework prevents overextending on a vehicle purchase.

Expert Insights

A 0% APR deal from the manufacturer is not always the best deal. Often you must choose between 0% financing and a cash rebate. Run the numbers both ways using this calculator.

Credit union auto loans consistently offer rates 1-2% lower than dealerships. Even after you finance through the dealer, you may be able to refinance to a credit union rate within 60-90 days.

Never focus solely on the monthly payment. Dealers can make any payment seem affordable by stretching the term. Focus on total cost and interest paid.

Frequently Asked Questions

Financial experts recommend spending no more than 10-15% of your take-home pay on all transportation costs (payment, insurance, fuel, maintenance). Keep the loan under 4 years when possible.
Leasing has lower monthly payments but you own nothing at the end. Buying is better if you plan to keep the car 5+ years, drive more than 12,000 miles/year, or want to eventually have no car payment.
Used cars cost less upfront and have already taken their steepest depreciation hit. However, new car loans often have lower interest rates. The sweet spot for value is often 2-3 year old certified pre-owned vehicles.
Yes, and it is common. If your credit score has improved since you got the original loan or rates have dropped, refinancing can save hundreds or thousands. Most lenders allow refinancing after 60-90 days.

This calculator provides estimates for educational purposes only. Actual results depend on your specific financial situation, lender terms, and market conditions. Consult a qualified financial advisor before making major financial decisions.

Run These Numbers Too

Personal Loan Calculator

Estimate your monthly payment, total interest, and total cost for a personal loan.

Budget Calculator (50/30/20)

Apply the popular 50/30/20 budgeting rule to your income and see exactly how to allocate every dollar.

Debt-to-Income Ratio Calculator

Calculate your DTI ratio to understand your borrowing capacity and financial health.

Find the Best Auto Loan Rate

Pre-qualify with top auto lenders and get the best rate before you set foot in a dealership.

Compare Auto Loans

Related Resources

Explore Banking

View Hub