Car Payment Calculator with Money Down
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Reviewed by Calculator Editorial Team
This car payment calculator helps you determine your monthly payments when you put money down on a car. By entering the car price, down payment amount, interest rate, and loan term, you can quickly see how much you'll pay each month and the total cost of the loan.
How to Use This Calculator
Using this car payment calculator is simple. Follow these steps:
- Enter the total price of the car in the "Car Price" field.
- Enter the amount you plan to put down as a down payment in the "Down Payment" field.
- Enter the annual interest rate for the loan in the "Interest Rate" field.
- Select the loan term (in years) from the dropdown menu.
- Click the "Calculate" button to see your monthly payment and total loan cost.
The calculator will display your monthly payment amount and the total amount you'll pay over the life of the loan, including interest.
Formula Used
The calculator uses the standard car loan payment formula:
Monthly Payment Formula
P = (A × r × (1 + r)^n) / ((1 + r)^n - 1)
Where:
- P = Monthly payment
- A = Loan amount (Car Price - Down Payment)
- r = Monthly interest rate (Annual Rate / 12 / 100)
- n = Number of payments (Loan Term in years × 12)
The total loan cost is calculated by multiplying the monthly payment by the number of payments.
Worked Example
Let's say you want to buy a car priced at $25,000 with a $5,000 down payment, at an annual interest rate of 5%, and a loan term of 4 years.
Example Calculation
Loan amount: $25,000 - $5,000 = $20,000
Monthly interest rate: 5% / 12 / 100 = 0.004167
Number of payments: 4 × 12 = 48
Monthly payment: ($20,000 × 0.004167 × (1 + 0.004167)^48) / ((1 + 0.004167)^48 - 1) ≈ $427.25
Total loan cost: $427.25 × 48 ≈ $20,500
Monthly payment: $427.25
Total loan cost: $20,500
In this example, your monthly payment would be approximately $427.25, and the total cost of the loan would be $20,500.
Frequently Asked Questions
How does a down payment affect my car payment?
A down payment reduces the loan amount, which in turn lowers your monthly payments. The more you put down, the less you'll pay each month and the lower your total interest costs.
What is the best down payment percentage for a car?
The ideal down payment percentage varies, but typically 10-20% of the car's price is recommended. A larger down payment can improve your credit score and lower your monthly payments.
How does the interest rate affect my car payment?
A higher interest rate increases your monthly payments and the total amount you'll pay over the life of the loan. It's important to shop around for the best interest rate available.
What is the difference between APR and interest rate?
APR (Annual Percentage Rate) is the total cost of credit, including any fees, while the interest rate is the actual percentage charged on the loan amount. APR is typically higher than the interest rate.