Car Payment Calculator

How to Use This Car Payment Calculator

Our free car payment calculator helps you estimate your monthly auto loan payment in seconds. Enter the car price, down payment, loan term, and interest rate to see your payment breakdown, compare different loan terms side by side, and view a full amortization schedule.

Steps:

1. Enter the total car price (before taxes and fees)
2. Enter your down payment amount
3. Select your desired loan term in months
4. Enter the annual interest rate (APR)
5. View your monthly payment, total interest, and total cost
6. Compare all loan terms in the comparison table
7. Expand the amortization schedule for a month-by-month breakdown

How Car Payments Are Calculated

Auto loan payments use the same amortization formula as mortgages. Your monthly payment is determined by three factors:

• Loan amount (principal) — The car price minus your down payment
• Interest rate (APR) — The annual percentage rate your lender charges
• Loan term — The number of months to repay the loan

The standard formula is:

M = P x [r(1 + r)^n] / [(1 + r)^n - 1]

Where:

• M = monthly payment
• P = principal (loan amount)
• r = monthly interest rate (annual rate / 12)
• n = total number of payments (loan term in months)

Example: For a $30,000 loan at 6.5% APR over 60 months: M = $30,000 x [0.005417(1.005417)^360] / [(1.005417)^360 - 1] = $587/month

Understanding Amortization

Amortization is the process of spreading your loan into a series of fixed payments. Each payment has two parts:

• Principal: The portion that reduces your loan balance
• Interest: The cost of borrowing, calculated on your remaining balance

In the early months, most of your payment goes toward interest. As your balance decreases, more of each payment goes toward principal. By the final months, nearly the entire payment goes toward principal. This is visible in the amortization schedule.

Example ($30,000 loan at 6.5%, 60 months):

Choosing the Right Loan Term

The loan term significantly affects your monthly payment and total cost. Here's how common terms compare for a $30,000 loan at 6.5% APR:

Shorter terms mean higher monthly payments but less total interest paid.Longer terms lower your monthly payment but cost significantly more over the life of the loan. A 72-month loan costs over $1,000 more in interest than a 60-month loan on the same amount.

Tips for Getting the Best Auto Loan Rate

1. Check your credit score before shopping. Scores above 740 typically qualify for the best rates. Scores below 660 may face significantly higher rates.
2. Get pre-approved before visiting the dealership. This gives you negotiating leverage and a baseline rate to compare against dealer financing.
3. Shop multiple lenders. Compare rates from banks, credit unions, and online lenders. Credit unions often offer the lowest rates.
4. Make a larger down payment. Putting 20% or more down reduces the loan amount and may qualify you for a better rate.
5. Choose the shortest term you can afford. The interest savings from a shorter term can be substantial — often thousands of dollars.
6. Consider new vs. used rates. New car loans typically have lower rates than used car loans. The difference can be 1-3 percentage points.
7. Watch out for dealer markups. Dealers sometimes add a markup to the interest rate (called a reserve or yield spread). Ask for the buy rate.

Real-World Examples

Example 1: A $28,000 car with $5,000 down, 6.0% APR, 60 months. Loan = $23,000. Monthly payment = $445. Total interest = $3,698. Total cost = $26,698.

Example 2: A $45,000 SUV with $10,000 down, 5.5% APR, 72 months. Loan = $35,000. Monthly payment = $571. Total interest = $6,128. Total cost = $41,128.

Example 3: A $22,000 used car with $4,000 down, 7.5% APR, 48 months. Loan = $18,000. Monthly payment = $435. Total interest = $2,876. Total cost = $20,876.

Frequently Asked Questions

Is a 72-month car loan a bad idea?

A 72-month (6-year) loan isn't inherently bad, but it does have drawbacks. You pay more total interest, and you may be “upside down” (owing more than the car is worth) for several years. If you need the lower monthly payment to fit your budget, it can work — but consider a 60-month loan first.

Should I get a car loan from a dealer or a bank?

Compare both. Dealers often have relationships with multiple lenders and may offer promotional rates (especially on new cars). But banks and credit unions may offer lower rates. Get pre-approved from a bank or credit union first, then see if the dealer can beat it.

How much should my down payment be?

A 20% down payment is ideal because it helps you avoid being upside down on the loan and may qualify you for a better interest rate. However, even a 10% down payment can make a significant difference in your monthly payment and total cost.

Does refinancing a car loan save money?

Refinancing can save money if interest rates have dropped since you took out the loan, or if your credit score has improved. The savings depend on your current rate, new rate, and remaining balance. Generally, refinancing makes sense if you can reduce your rate by at least 1-2 percentage points.

What fees should I expect besides the loan payment?

Beyond your monthly payment, car ownership includes sales tax, registration, title fees, documentation fees, insurance, fuel, maintenance, and repairs. A common guideline is that total transportation costs should not exceed 10-15% of your gross income.

Can I pay off my car loan early?

Most auto loans allow early payoff without penalties, but always check your loan agreement for prepayment penalty clauses. Paying extra toward principal each month can significantly reduce your total interest and shorten your loan term. Even $50-100 extra per month can save hundreds in interest over the life of the loan.