How does a car loan calculator work?
It subtracts down payment and trade-in value from the vehicle price, then calculates monthly repayment from the financed amount, interest rate, and loan term.
Finance calculator
Car Loan Calculator
Calculate monthly payments for new and used vehicles with down payment and trade-in built in. See how financing changes your real total car cost before you sign anything.
Calculate monthly payments for new and used car loans with down payment and trade-in value.
Car type
Typical rate: 6.5%
Vehicle price
$35,000
Down payment (14%)
$5,000
Trade-in value
$0
Amount financed
$30,000
Vehicle price minus down payment and trade-in
Annual interest rate
6.5%
Financing insight
Financing this vehicle adds $5,219 in interest on top of the sticker price compared with paying cash.
How a car loan works
A car loan is a fixed repayment plan used to finance some or all of a vehicle purchase. The financed amount is usually the sticker price minus any down payment and minus any trade-in credit. That financed amount is then repaid in equal monthly installments plus interest.
The biggest monthly-payment drivers are purchase price, down payment, annual rate, and loan term. Used-car rates are often higher than new-car rates, which is why the calculator lets you switch between them.
Down payment and trade-in value
A higher down payment reduces the amount borrowed immediately. A trade-in does the same by applying the value of your current car against the purchase. Both reduce monthly payment and total interest over the life of the loan.
New car vs used car loans
New car financing typically comes with lower rates, especially when manufacturers subsidize loans. Used car loans often cost more because the vehicle is older and depreciates differently.
Choosing the right loan tenure
Shorter tenures increase the monthly payment but reduce total interest. Longer tenures lower the monthly bill while increasing the final amount paid. This is why 48 to 60 months tends to be the most practical range for many buyers.
| Tenure | Monthly Payment | Total Interest | Total Cost |
|---|---|---|---|
| 36 months | $772 | $2,791 | $27,791 |
| 48 months | $598 | $3,706 | $28,706 |
| 60 months | $495 | $4,752 | $29,752 |
| 72 months | $427 | $5,731 | $30,731 |
| 84 months | $378 | $6,762 | $31,762 |
Tips to get a better car loan rate
- Check credit before applying and fix avoidable issues early.
- Compare bank, dealer, and credit-union offers instead of taking the first quote.
- Use a larger down payment where possible to lower lender risk.
- Avoid rolling unnecessary add-ons into the financed amount.
Frequently asked questions
What is a good down payment for a car loan?
Many buyers target around 20 percent for a new car and 10 percent for a used car, though the right number depends on budget and lender requirements.
What is trade-in value in a car loan?
Trade-in value is the amount credited for your current vehicle when buying another one. It directly reduces the amount you need to finance.
Are rates usually higher for used cars?
Yes. Used car loans often carry higher rates because the vehicle is older and the lender takes on more risk.
What loan tenure is best for a car loan?
Shorter terms save interest overall, while longer terms reduce monthly pressure. Around 48 to 60 months is a common balance point.