Auto Payment Calculator Free
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Reviewed by Calculator Editorial Team
This free auto payment calculator helps you estimate your monthly car loan payments. Simply enter your loan amount, interest rate, and loan term to get an accurate payment estimate.
How to Use This Calculator
Using this auto payment calculator is simple:
- Enter the total loan amount you're applying for.
- Input the annual interest rate (APR) for your loan.
- Specify the loan term in years.
- Click "Calculate" to see your estimated monthly payment.
The calculator uses the standard amortization formula to provide accurate results. You can also view a payment schedule chart to see how your loan balances over time.
Formula Used
The auto payment calculator uses the following formula to calculate your monthly payment:
Monthly Payment Formula
M = P [ i(1 + i)n ] / [ (1 + i)n - 1 ]
Where:
- M = Monthly payment
- P = Principal loan amount
- i = Monthly interest rate (annual rate divided by 12)
- n = Number of payments (loan term in years multiplied by 12)
This formula accounts for the interest you'll pay over the life of the loan, providing an accurate estimate of your monthly obligation.
Worked Example
Let's calculate the monthly payment for a $25,000 loan at 4.5% APR over 5 years:
- Principal (P) = $25,000
- Annual interest rate = 4.5% or 0.045
- Monthly interest rate (i) = 0.045 / 12 = 0.00375
- Loan term in months (n) = 5 × 12 = 60
Plugging these values into the formula:
Calculation
M = $25,000 [ 0.00375(1 + 0.00375)60 ] / [ (1 + 0.00375)60 - 1 ]
M ≈ $25,000 [ 0.00375 × 1.2456 ] / [ 1.2456 - 1 ]
M ≈ $25,000 [ 0.00464 ] / 0.2456
M ≈ $25,000 × 0.0189
M ≈ $472.50
Your estimated monthly payment would be $472.50.
Frequently Asked Questions
Is this calculator free to use?
Yes, this auto payment calculator is completely free to use with no hidden fees or subscriptions required.
How accurate are the results?
The calculator provides an estimate based on the information you provide. For exact figures, consult your lender or financial advisor.
Can I use this for refinancing?
Yes, you can use this calculator to estimate payments for both new loans and refinancing scenarios.