Auto Loan Calculator
Calculate your monthly auto loan payment based on loan amount, interest rate, and loan term.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Auto Loan Calculator
- Enter Loan Amount ($): Type the total amount you plan to borrow (e.g., 25000 for $25,000). Must be a positive number.
- Enter Annual Interest Rate (%): Input the yearly interest rate as a percentage (e.g., 5.5 for 5.5%). Can be zero.
- Enter Loan Term (months): Specify the repayment period in whole months (e.g., 60 for 5 years). Must be a positive integer.
- Click "Calculate": Press the button or hit Enter in any field to compute your monthly payment.
Output: The estimated monthly payment appears in green. Below, you'll see a breakdown showing the loan amount, monthly interest rate (annual rate divided by 12), and total number of payments.
Tip: All inputs must be valid numbers. If an error appears, correct the highlighted field and recalculate.
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Frequently Asked Questions
The monthly payment is calculated using the formula M = P * [r(1+r)^n] / [(1+r)^n - 1], where P is the loan amount, r is the monthly interest rate (annual rate divided by 12), and n is the number of monthly payments.
You need to provide the loan amount (in dollars), annual interest rate (in percent), and loan term (in months).
Yes, the formula applies to any fixed-rate installment loan, such as personal loans or mortgages. However, it assumes equal monthly payments and does not include taxes, fees, or insurance.
