Finance & Money
Auto Loan Calculator
Use the auto loan calculator to estimate monthly payment and total interest before shopping for a vehicle.
Monthly payment
—
- Amount financed
- —
- Total interest
- —
Student quick launch
Grade planning, algebra checks, and formulas students reach for most.
Study path
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Follow these when you want the formula behind the answer, a short lesson, or nearby tools in the same topic.
What the auto loan calculator solves
Use the auto loan calculator to estimate monthly payment and total interest before shopping for a vehicle.
Formula
How to use it
- Enter vehicle price and cash/trade-in credits.
- Add taxes, fees, APR, and term.
- Compare monthly payment and total interest.
How to read the answer
Longer terms lower the payment but usually increase total interest.
Common mistakes and edge cases
- Taxes and fees can materially change the financed amount.
- Trade-in tax treatment varies by location.
- APR is not the same as the interest dollars paid.
Worked examples
Typical auto loan
Monthly payment
$607.33
With trade-in
Monthly payment
$504.80
Frequently asked questions
Does this include insurance?+
No. It estimates the loan payment, not full ownership cost.
Should I choose the longest term?+
A longer term can lower monthly payment but often increases total interest and negative equity risk.
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Last updated: May 8, 2026