Auto Loan Calculator
An auto loan calculator finds the monthly payment for financing a vehicle after subtracting a down payment or trade-in value, using the standard amortizing-loan payment formula. A larger down payment or trade-in value reduces both the financed amount and the total interest paid over the loan, since interest is calculated only on the remaining balance — the same underlying amortizing-loan math as a mortgage, just scaled to a vehicle price and a shorter typical term.
Educational estimate only. Results are not medical, legal, or financial advice. Confirm important decisions with a qualified professional.
How it works
- Enter the vehicle price and any down payment or trade-in value.
- Enter the annual interest rate and loan term in months.
- Read the monthly payment, financed amount, and total interest.
Formula financed = price − down payment; M = financed·r(1+r)^n / ((1+r)^n − 1)
Frequently asked questions
Does this include tax, title, and fees?
No. Enter the out-the-door price (including any taxes/fees you plan to finance) as the vehicle price for an accurate payment.
What if I am not putting money down?
Enter 0 for down payment — the full vehicle price is financed.
How is this different from the personal loan calculator?
This one subtracts a down payment from the price first; the personal loan tool starts directly from a principal amount.
Does a trade-in count as a down payment here?
Yes — enter your trade-in’s value (after payoff of any existing loan on it) in the down payment field.
Is this financial advice?
No. It is an educational estimate; confirm exact terms with your lender.