Auto Loan Calculator Free Download
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Reviewed by Calculator Editorial Team
This free auto loan calculator helps you estimate your monthly payments, total interest, and loan cost for a new or used vehicle. Simply enter your loan amount, interest rate, and loan term to get instant results. You can also download our calculator for offline use.
How to Use This Calculator
Using our auto loan calculator is simple:
- Enter the loan amount you need (the price of the vehicle).
- Input your interest rate (APR).
- Select your loan term in years.
- Click "Calculate" to see your monthly payment and other details.
- Download the calculator for offline use if needed.
The calculator uses the standard auto loan formula to provide accurate estimates. Remember that actual loan terms may vary based on your lender's specific conditions.
Formula Used
Auto Loan Payment Formula
The monthly payment (PMT) for an auto loan is calculated using the standard loan payment formula:
PMT = P × (r(1 + r)^n) / ((1 + r)^n - 1)
Where:
- P = Principal loan amount (vehicle price)
- r = Monthly interest rate (APR ÷ 12 ÷ 100)
- n = Number of payments (loan term in years × 12)
This formula accounts for the interest you'll pay over the life of the loan. The calculator also shows the total interest paid and the total cost of the loan.
Worked Example
Let's calculate a monthly payment for a $25,000 loan with a 5% APR over 5 years:
- Principal (P) = $25,000
- Annual interest rate = 5% → Monthly rate (r) = 5% ÷ 12 = 0.4167%
- Loan term = 5 years → Number of payments (n) = 5 × 12 = 60
Plugging these into the formula:
PMT = 25000 × (0.004167(1 + 0.004167)^60) / ((1 + 0.004167)^60 - 1)
This calculation results in a monthly payment of approximately $465.28.
Total interest paid over 5 years would be about $3,928.80, making the total cost of the loan $28,928.80.
Loan Term Comparison
Here's how different loan terms affect your monthly payments for a $25,000 loan at 5% APR:
| Loan Term | Monthly Payment | Total Interest | Total Cost |
|---|---|---|---|
| 3 years (36 months) | $748.50 | $2,826.00 | $27,826.00 |
| 4 years (48 months) | $606.25 | $3,450.00 | $28,450.00 |
| 5 years (60 months) | $465.28 | $3,928.80 | $28,928.80 |
| 6 years (72 months) | $389.86 | $4,435.52 | $29,435.52 |
| 7 years (84 months) | $336.49 | $5,007.88 | $30,007.88 |
Shorter loan terms result in higher monthly payments but lower total interest. Longer loan terms have lower monthly payments but higher total interest costs.
FAQ
Is this calculator accurate for all auto loans?
This calculator provides estimates based on standard auto loan formulas. Actual loan terms may vary depending on your lender's specific conditions, fees, and promotions.
Can I use this calculator for refinancing?
Yes, you can use this calculator to estimate payments for refinancing your existing auto loan. Simply enter your current loan amount, interest rate, and desired loan term.
What is the difference between APR and interest rate?
APR (Annual Percentage Rate) is the total cost of credit over one year, including all fees and interest. The interest rate is the cost of borrowing without fees. APR is typically higher than the interest rate.
How can I lower my auto loan payments?
To lower your payments, you can: get a lower interest rate, extend the loan term, make larger payments, or refinance with a lower rate. However, be aware that longer terms may increase total interest costs.