Auto Loan Calculator with Schedule
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Reviewed by Calculator Editorial Team
This auto loan calculator with schedule helps you determine your monthly payments and view the complete amortization schedule. Whether you're buying a new or used car, understanding your loan terms is crucial for financial planning.
How to Use This Calculator
Using this auto loan calculator is simple:
- Enter the loan amount you need to borrow
- Input the annual interest rate (APR)
- Specify the loan term in years
- Click "Calculate" to see your monthly payment and full schedule
The calculator will display your monthly payment amount and generate a detailed amortization schedule showing each payment's principal and interest components.
Formula Used
The monthly payment is calculated using the standard loan payment formula:
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 (APR/12)
- n = Number of payments (loan term in years × 12)
The amortization schedule shows how each payment is applied to principal and interest over the life of the loan.
Worked Example
Let's calculate a $20,000 loan at 4.5% APR for 5 years:
- Principal (P) = $20,000
- Annual interest rate = 4.5% or 0.045
- Monthly interest rate (i) = 0.045/12 = 0.00375
- Number of payments (n) = 5 × 12 = 60
Plugging into the formula:
Calculation
M = $20,000 [ 0.00375(1 + 0.00375)^60 ] / [ (1 + 0.00375)^60 - 1 ]
M ≈ $20,000 [ 0.00375 × 1.2314 ] / [ 1.2314 - 1 ]
M ≈ $20,000 [ 0.00456 ] / 0.2314
M ≈ $20,000 × 0.0197 ≈ $394.40
The monthly payment would be approximately $394.40.
Interpreting Results
The calculator provides several key pieces of information:
- Monthly Payment: The amount you'll pay each month
- Total Interest: The total interest paid over the life of the loan
- Total Cost: The principal plus total interest
- Amortization Schedule: A detailed breakdown showing how much of each payment goes toward principal and interest
The amortization schedule helps you understand how quickly you're paying down the principal versus the interest. In the early years, most of your payment goes toward interest, while later payments go more toward principal.
Tip
Consider making extra payments to reduce the total interest and pay off the loan faster. Even small extra payments can significantly reduce your total interest costs.
Frequently Asked Questions
This calculator uses standard financial formulas to provide accurate results. The calculations are based on the loan amount, interest rate, and term you provide.
Yes, you can use this calculator to estimate your new monthly payments if you're considering refinancing your auto loan. Simply enter your new loan terms to see the potential savings.
The Annual Percentage Rate (APR) is the total cost of credit, including any fees, while the interest rate is the cost of borrowing without fees. APR is always higher than the interest rate.
You can typically find your current loan balance on your loan statement or by contacting your lender. If you're unsure, you can estimate it by reviewing your payment history and using the amortization schedule.