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Auto Loan Calculator

Work out your monthly car payment before you visit the dealer — this auto loan calculator covers car financing and vehicle loans of every kind: enter the price, down payment, trade-in value, APR and term to see your payment, total interest and full cost.

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How the Auto Loan Calculator Works

A car loan is simple at its core: the amount you borrow is the vehicle price minus your down payment and trade-in value. Your monthly payment then comes from the standard loan formula: M = P·r(1+r)^n ÷ ((1+r)^n − 1), where P is the loan amount, r is the monthly interest rate (your APR divided by 12), and n is the number of monthly payments. The same formula powers car financing and vehicle loans of every kind — the only things that change are the numbers you enter.

Example: a $30,000 car with a $5,000 down payment and a $3,000 trade-in means you borrow $22,000. At 6.9% APR over 60 months, the monthly payment is $434.59, total interest is $4,075.35, and you pay $34,075.35 in total once the down payment and trade-in are counted. In the first year alone, $1,398.81 of your payments goes to interest and $3,816.26 to principal — early payments are mostly interest, and the balance falls faster later on.

A shorter term costs more each month but much less overall. The same $22,000 loan at 6.9% over 36 months costs $678.29 a month — but total interest drops to $2,418.47, saving about $1,657 versus the 60-month loan. A 0% APR deal is the extreme case: a $12,000 loan over 24 months is exactly $500.00 a month with zero interest, though those deals usually mean giving up a cash rebate.

Frequently Asked Questions

How is my monthly car payment calculated?
Your loan amount is the vehicle price minus your down payment and trade-in value. The monthly payment comes from the standard loan formula M = P·r(1+r)^n ÷ ((1+r)^n − 1), where r is your APR divided by 12 and n is the number of monthly payments. A bigger loan, a higher APR or a longer term all raise the total interest you pay.
Does a bigger down payment or trade-in lower my payment?
Yes. Every dollar of down payment or trade-in reduces the amount you borrow, which lowers both the monthly payment and the total interest. In the example above, a $5,000 down payment plus a $3,000 trade-in cut the loan from $30,000 to $22,000 — and the monthly payment with it.
Does this auto loan calculator include taxes and fees?
No. Sales tax, registration and dealer fees are not included in the result. If you want them financed along with the car, add them to the vehicle price before calculating — the tool then treats them as part of the loan.
What is a good APR for a car loan?
It depends on your credit score, the lender and whether the car is new or used. Borrowers with strong credit often see APRs around 5–7% on new cars, while weaker credit can mean 10% or more. A shorter term usually comes with a lower rate, and paying less interest overall matters more than a small difference in the monthly payment.
What is an auto finance calculator?
An auto finance calculator estimates your monthly car payment before you visit a dealer. Enter the vehicle price, down payment, trade-in value, APR and loan term, and it shows the loan amount, the monthly payment, the total interest and the total cost — so you can compare loan offers side by side.
How does a car financing calculator work?
A car financing calculator takes the amount you borrow — vehicle price minus down payment and trade-in — and applies the standard loan formula using your APR and term. The result is your monthly payment plus the total interest, so you can see what the financing really costs over the life of the loan.
Is this also a vehicle loan calculator?
Yes. A vehicle loan calculator and an auto loan calculator do the same job — this tool works for cars, trucks and other vehicles. Enter the price, down payment, trade-in, APR and term, and it calculates the monthly payment and total cost for any vehicle loan.

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