Rex says
Money math without the spreadsheet headache. Plug in your numbers and I'll show you exactly where the dollars land.
Try a scenario
Click to load — tweak from there.Inputs
Result
Monthly payment
$633.64
Total interest paid
$6,018
Total of all payments
$38,018
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One click, a permanent link with your numbers baked in.
How to use this
- 1Enter vehicle price ($).
- 2Enter down payment + trade-in ($).
- 3Enter apr (%).
- 4Enter loan term (months).
- 5Read your monthly payment on the right — it updates as you type.
- 6Hit Share to keep the scenario or send it to someone.
About this calculator
Auto loan payments are calculated with the standard amortization formula using the loan amount (price minus down payment and trade-in), the annual interest rate, and loan term. This calculator computes your fixed monthly payment and total interest paid over the life of the loan.
Worked example
Using the values the calculator loads with:
Inputs
- Vehicle price: 38000 $
- Down payment + trade-in: 6000 $
- APR: 7 %
- Loan term: 60 months
Results
- Monthly payment: $633.64
- Total interest paid: $6,018
- Total of all payments: $38,018
What each field means
Inputs
- Vehicle price ($)
- The vehicle price used in the calculation, measured in $. Starts at 38000 $ so you have a working example on load.
- Down payment + trade-in ($)
- The down payment + trade-in used in the calculation, measured in $. Starts at 6000 $ so you have a working example on load.
- APR (%)
- The apr used in the calculation, measured in %. Starts at 7 % so you have a working example on load. Accepted range: 0–25 %.
- Loan term (months)
- The loan term used in the calculation, measured in months. Starts at 60 months so you have a working example on load. Accepted range: 12–96 months.
Results
- Monthly payment
- Returned as a money amount in US dollars and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Total interest paid
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Total of all payments
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
How much will my car payment be?
A $38,000 car with a $6,000 down payment leaves a $32,000 loan; at 7% APR over 60 months, the payment is about $634/month, with roughly $6,010 in total interest.
How much does loan term affect the payment?
Stretching a $32,000 loan from 60 to 72 months at 7% drops the payment to about $546/month but raises total interest paid from roughly $6,010 to $7,290.
Does APR vary a lot by credit score?
Significantly — excellent credit buyers might see 5-6% APR while subprime buyers can see 15-20%+, which can add hundreds of dollars a month to the same loan amount.
Should I include sales tax in the price?
Yes, if you're financing it — most dealers roll sales tax, title, and registration fees into the loan amount, which increases both the loan balance and the monthly payment above the sticker price.
Accuracy and limitations
- Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
- Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.
- This is educational maths, not financial advice. Check anything contractual with the lender or your accountant.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). How Much Will My Car Payment Be?. Retrieved from https://www.revenuelab.fyi/toolbox/how-much-will-my-car-payment-be
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/how-much-will-my-car-payment-be" target="_blank" rel="noopener">How Much Will My Car Payment Be? — RevenueLab</a> (2026).</p>
Source: [How Much Will My Car Payment Be? — RevenueLab](https://www.revenuelab.fyi/toolbox/how-much-will-my-car-payment-be) (2026).