Auto Financing: New vs Used Car Loans & Free Calculator
Use the free auto loan calculator below to estimate your monthly payment and compare different financing scenarios. Adjust the down payment, rate, and term to find the best option for your budget.
Auto Loan Calculator
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About the Auto Loan Calculator
An auto loan calculator helps you understand the true cost of financing a vehicle. By entering the car price, down payment, loan term, and interest rate, you can see your monthly payment, total interest paid, and the all-in cost of the vehicle over the life of the loan.
Quick Start Guide
- Enter vehicle price — The total purchase price of the car, before trade-in or down payment.
- Add down payment — How much cash are you putting down? Larger down payments reduce monthly costs.
- Set interest rate — Check current auto loan rates — typically 5-8% for good credit, higher for fair credit.
- Choose loan term — Common terms are 36, 48, 60, or 72 months. Longer terms mean lower payments but more interest.
How It Works
Uses the standard amortization formula: M = P × [r(1+r)^n] / [(1+r)^n − 1]. Results include the monthly payment, total loan cost, total interest, and a comparison showing how different loan terms affect your payments and total cost.
Current Market Data
| Metric | Value | Source | Date |
|---|---|---|---|
| New Car Loan Rate (Good Credit) | 6.80% | Bankrate | June 2026 |
| New Car Loan Rate (Fair Credit) | 11.20% | Bankrate | June 2026 |
| Used Car Loan Rate (Good Credit) | 7.40% | Bankrate | June 2026 |
Real-World Example
Scenario: Financing a $35,000 car
- Car price: $35,000.
- Down payment: $5,000 (14.3% down).
- Loan amount: $30,000.
- Rate and term: 6.9% APR for 60 months.
Who Is This For?
This auto loan calculator is designed for Car shoppers comparing financing options, people deciding between buying and leasing, and anyone who wants to understand the true cost of a vehicle loan before visiting the dealership.. It's intentionally simple — no complex signup forms, no data tracking, no distractions. Just enter your numbers and get the answer.
Pro Tip
Get pre-approved from your bank or credit union before going to the dealership. Dealership financing often has higher rates, and having a pre-approval gives you negotiating leverage.
Things to Know
The average American car payment in 2025 is over $700 per month, and the average new car loan term is 68 months. That means most people are paying over $47,000 for a vehicle when you include interest. Understanding the math before you shop can save you thousands.
Use this calculator to compare scenarios before you walk into a dealership. Know exactly what you can afford monthly, what the total cost will be, and where your break-even point is between different loan terms. Dealers profit from monthly payment focus — they will extend terms to make a more expensive car "fit" your budget.
Key consideration: Cars depreciate roughly 20% in the first year. A 72-month loan means you could owe more than the car is worth for the first 3-4 years of ownership. A shorter term or larger down payment protects you from this negative equity trap.
Sources & References
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Frequently Asked Questions
Should I choose a shorter or longer loan term?
Shorter terms (36-48 months) have higher monthly payments but much lower total interest. Longer terms (60-84 months) reduce monthly payments but cost significantly more in interest. A good rule: if you can't afford the 48-month payment, consider a less expensive car rather than extending the term.
How does my credit score affect my auto loan rate?
Credit scores heavily influence auto loan rates. As of 2026, borrowers with excellent credit (720+) might get rates around 5-7%, while those with fair credit (620-679) may see rates of 10-15% or higher. Check your credit score before shopping for financing.
How accurate is this calculator?
This calculator provides accurate results based on the inputs you enter. The calculations follow standard financial formulas used by banks and financial institutions. Always verify critical numbers with a professional.
Can I save or print my results?
Yes! You can use your browser's print function (Ctrl+P or Cmd+P) to save or print the results. We recommend taking a screenshot for quick reference.
Is this calculator really free?
Yes, 100% free. No signup, no hidden fees, no usage limits. Use it as many times as you need.
What This Tool Shows
This calculator applies the standard amortisation formula to your vehicle price, down payment, rate, and term. Use it to compare scenarios side by side — try a 48-month term vs 72 months, or $5,000 down vs $10,000, to see how each choice affects your monthly payment and total cost.
Auto Loan Formula
Where M = monthly payment, P = loan amount, r = monthly interest rate (annual rate ÷ 12), n = total months. This produces a fixed monthly payment where each payment reduces the principal while covering accrued interest.
Leasing vs Buying: Which Is Right for You?
| Factor | Buying | Leasing |
|---|---|---|
| Monthly payment | Higher | Lower (you pay depreciation only) |
| Ownership | You own the car | You return it at lease end |
| Mileage limits | Unlimited | Typically 10–15K miles/year |
| Long-term cost | Cheaper (you keep the car) | More expensive (perpetual payments) |
| Best for | Long-term ownership, high mileage | Wanting a new car every 2–3 years |
The bottom line: buying is almost always cheaper over the long term. Leasing makes sense only if you genuinely want a new car every 2–3 years and drive within mileage limits.
How to Get the Best Auto Loan Rate
- Check your credit score first: Know where you stand before applying. Dispute any errors on your credit report.
- Get pre-approved by 2–3 lenders: Banks, credit unions, and online lenders. Multiple auto loan inquiries within a 14-day window count as a single hard inquiry.
- Consider credit unions: They typically offer rates 1–2% lower than traditional banks.
- Negotiate the car price separately from financing: Agree on the out-the-door price first, then discuss financing.
- Watch for manufacturer incentives: 0% APR deals can save thousands, but read the fine print — they sometimes require shorter terms or exclude certain models.
Frequently Asked Questions
Next Steps
Use the calculator above to model your ideal financing scenario. Before visiting a dealer, check your credit score, get pre-approved by at least one lender, and research the fair market value of your target vehicle on Kelley Blue Book or Edmunds. Remember: the goal isn't the lowest monthly payment — it's the lowest total cost while staying within your budget.