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Auto Loan Calculator

Free auto loan calculator to estimate your monthly car payment, total interest and payoff date, with a full amortization schedule and a principal versus interest chart.

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Auto Loan Calculator

Monthly payments | Interest breakdown | Amortization

$35K
0% - 25%
5 years
$5K
$0
PRINCIPAL
$30K
INTEREST
$4K
Principal 89% Interest 11%
MONTHLY PAYMENT
$559.29
TOTAL PAYMENTS
$33,557
TOTAL INTEREST
$3,557
FINANCED AMOUNT
$30,000
Payoff Date
—
Effective Annual Rate
4.59%
Principal + Interest
$30,000 + $3,557
Loan-to-Value
86%
Amortization Schedule
YearPrincipal PaidInterest PaidRemaining Balance
Year 1$5,473$1,238$24,527
Year 2$5,725$987$18,802
Year 3$5,988$724$12,814
Year 4$6,263$448$6,551
Year 5$6,551$161$0
Auto Loan Insight: A larger down payment reduces interest. The chart shows the principal and interest share of your total payments.
Auto Loan Calculator — Free Monthly Car Payment and Amortization Schedule Calculator on HighCalc

Auto Loan Calculator: Monthly Payment, Interest & Amortization Schedule Tool

This auto loan calculator estimates your monthly car payment, total loan cost and interest when you finance a vehicle. Enter the vehicle price, down payment, trade-in value, interest rate and loan term, and you get an instant payment, a chart of principal versus interest, the payoff date and a full amortization schedule that shows how your balance falls over time.

Quick answer: a $35,000 car with $5,000 down at 4.5% over 5 years means you finance $30,000. The monthly payment is about $559 and the total interest is about $3,557. Use it whether you are buying a new car, a used car or comparing offers from banks and lenders.

How Your Monthly Car Payment Is Calculated

The amount you borrow is the vehicle price minus your down payment and trade-in value. The payment is then found with the standard amortization formula, where r is the annual rate divided by 12 and n is the number of monthly payments.

Monthly paymentPayment = P × r ÷ (1 − (1 + r)−n)

Each payment covers the interest that built up on the balance, and the rest reduces what you owe. Early in the loan the balance is high, so more of the payment is interest. The schedule below the chart shows this split for every year.

Auto Loan Term Comparison

A longer term lowers the monthly payment but costs more interest. This table shows a $30,000 loan at 4.5% for different terms.

Loan termMonthly paymentTotal interest
3 years$892.41$2,127
4 years$684.10$2,837
5 years$559.29$3,557
6 years$476.22$4,288
7 years$417.00$5,028

How Down Payment, Trade-In and Interest Rate Affect Your Loan

A larger down payment or a trade-in reduces the amount you finance, which lowers both the payment and the total interest. A lower rate does the same, and your rate depends on your credit score, the lender, the loan term and whether the car is new or used. If you already have a car loan and rates have dropped, the refinance calculator can show whether a new loan would save money, and the amortization calculator lets you explore any fixed-rate loan in more detail.

How Much Car Can You Afford?

A common rule of thumb is the 20/4/10 guideline: put down at least 20 percent, finance for no more than 4 years, and keep your total monthly car costs, including the payment, insurance and fuel, under about 10 percent of your gross income. It is a starting point rather than a rule, so adjust it to your own budget. To compare other kinds of borrowing, try the loan calculator or the payment calculator.

What This Calculator Doesn't Include

It calculates principal and interest only. Sales tax, registration, dealer and documentation fees, insurance and add-ons are not included, so add any amounts you plan to finance to the vehicle price. The rate shown as the effective annual rate is the entered rate compounded monthly, not an APR with fees. Results are estimates for general information and are not financial advice, and your lender's figures may differ slightly.

Who Should Use an Auto Loan Calculator?

It is useful for buyers financing a new or used car, people refinancing an existing loan, dealers and sales professionals, financial planners and advisors, students learning personal finance and anyone comparing car loan offers from banks, credit unions and dealerships.

How to Use This Auto Loan Calculator

1

Enter the vehicle price

Type it in or drag the slider.

2

Add your down payment and trade-in

Both reduce the amount you finance. Enter 0 if you have none.

3

Set the interest rate

Use the rate offered by your lender.

4

Select the loan term

Choose the number of years.

5

Click "Calculate Payment"

See the monthly payment, total interest, total payment, payoff date, chart and amortization schedule.

Features

Instant Results
Everything updates as you move a slider
Down Payment and Trade-In
See how each one changes the amount you finance
Amortization Schedule
A year-by-year view of principal, interest and balance
Principal vs Interest Chart
See how much of your total payment is interest
Works Everywhere
Fully responsive on phone, tablet, and desktop
Private & Secure
All calculations run in your browser — nothing is stored
Frequently Asked Questions
Common questions about the Auto Loan Calculator.
How is my monthly auto loan payment calculated?
The payment comes from the amortization formula: payment = P × r ÷ (1 − (1 + r)^−n), where P is the amount you finance, r is the monthly interest rate (annual rate ÷ 12) and n is the number of monthly payments. The financed amount is the vehicle price minus your down payment and trade-in.
What is a good auto loan term?
Common terms are 3 to 7 years. A shorter term has a higher monthly payment but costs less interest overall, while a longer term lowers the payment but costs more in total. Many buyers aim for 4 to 5 years.
Can I pay off my auto loan early?
Most auto loans allow early repayment, but check your agreement for prepayment penalties. Extra payments reduce the balance faster, so you pay less interest and finish the loan sooner.
What happens if I increase my down payment?
A larger down payment lowers the amount you finance, which reduces your monthly payment and the total interest you pay. It also reduces the loan-to-value ratio, which can help you qualify for a better rate.
What is the difference between APR and interest rate?
The interest rate is the cost of borrowing the money. APR also includes certain lender fees, so it is usually a little higher. This calculator uses the rate you enter and shows the effective annual rate with monthly compounding, not an APR with fees.
Does this calculator include taxes, insurance and fees?
No. It calculates principal and interest only. Sales tax, registration, dealer fees, insurance and add-ons are not included, so add any amounts you finance to the vehicle price to see their effect.