Auto Loan Calculator Excel
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Reviewed by Calculator Editorial Team
This auto loan calculator helps you determine monthly payments, total interest, and amortization schedule for a car loan. The calculator is designed to work with Excel formulas and provides a clear breakdown of your loan terms.
How to Use This Calculator
To use this auto loan calculator:
- Enter the loan amount in the "Loan Amount" field.
- Input the annual interest rate in the "Interest Rate" field.
- Specify the loan term in years in the "Loan Term" field.
- Click the "Calculate" button to see your monthly payment, total interest, and amortization schedule.
The calculator will display your monthly payment, total interest paid over the life of the loan, and a chart showing the principal and interest breakdown.
Formula Used
The monthly payment for an auto loan is calculated using the standard loan payment formula:
Monthly Payment = P × (r(1 + r)^n) / ((1 + r)^n - 1)
Where:
- P = Loan amount
- r = Monthly interest rate (Annual rate ÷ 12 ÷ 100)
- n = Number of payments (Loan term in years × 12)
Total interest paid is calculated by subtracting the loan amount from the total of all monthly payments.
Worked Example
Let's calculate a monthly payment for a $25,000 loan at 5% annual interest over 5 years:
- Loan amount (P) = $25,000
- Annual interest rate = 5% → Monthly rate (r) = 5 ÷ 12 ÷ 100 = 0.004167
- Loan term (n) = 5 years × 12 = 60 months
Monthly Payment = $25,000 × (0.004167(1 + 0.004167)^60) / ((1 + 0.004167)^60 - 1)
Monthly Payment ≈ $467.74
Total interest paid over 5 years would be approximately $1,874.20.
Frequently Asked Questions
How accurate is this auto loan calculator?
This calculator uses standard financial formulas to provide accurate results based on the inputs you provide. For precise calculations, ensure you enter the correct loan amount, interest rate, and loan term.
Can I use this calculator with Excel?
Yes, the formulas used in this calculator are compatible with Excel. You can recreate the calculations in Excel using the provided formulas.
What factors affect my auto loan payment?
Your auto loan payment is primarily affected by the loan amount, interest rate, and loan term. A higher loan amount, higher interest rate, or longer loan term will result in a higher monthly payment.