Free Auto Loan Calculator Download
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Reviewed by Calculator Editorial Team
This free auto loan calculator helps you estimate monthly payments, total interest, and loan costs. Simply enter your loan amount, interest rate, and loan term to get an instant calculation.
How to Use This Auto Loan Calculator
Using our auto loan calculator is simple:
- Enter the loan amount you're considering (e.g., $25,000)
- Input the annual interest rate (e.g., 4.5%)
- Specify the loan term in years (e.g., 5 years)
- Click "Calculate" to see your estimated monthly payment
The calculator will display your monthly payment, total interest paid over the loan term, and the total amount paid (principal + interest).
Formula Used
The auto loan calculator uses the standard loan payment formula:
Monthly Payment = P × (r(1 + r)^n) / ((1 + r)^n - 1)
Where:
- P = Principal loan amount
- r = Monthly interest rate (annual rate divided by 12)
- n = Number of payments (loan term in years × 12)
This formula calculates the fixed monthly payment required to pay off the loan over the specified term.
Worked Example
Let's calculate a $25,000 loan at 4.5% annual interest for 5 years:
- Convert annual rate to monthly: 4.5% ÷ 12 = 0.375% or 0.00375
- Calculate number of payments: 5 years × 12 = 60 months
- Plug into formula: $25,000 × (0.00375(1 + 0.00375)^60) / ((1 + 0.00375)^60 - 1)
- Result: $478.50 monthly payment
Total interest paid over 5 years: $1,380.00
Total amount paid: $26,380.00
Frequently Asked Questions
What is the difference between APR and interest rate?
APR (Annual Percentage Rate) is the annual interest rate charged for borrowing, while the interest rate is the actual percentage used in calculations. APR includes additional fees and costs.
How does loan term affect my monthly payment?
A longer loan term means lower monthly payments but higher total interest paid. A shorter term means higher monthly payments but lower total interest.
Can I pay extra toward my loan?
Yes, paying extra principal reduces the loan balance faster and lowers total interest paid. Our calculator can help you estimate the impact of extra payments.