KillTire

Free tool

Auto loan calculator

Crunch payments before you walk into a dealership. Adjust price, down payment, trade-in, tax, APR, and term — results update live. Export your amortization when you want a copy.

Deal inputs

Structure the loan

$
$
$

Applied before tax in most states

%
$

Doc fees, warranties, accessories

%
months

Estimated payment

$614.60/mo

$30,679 financed over 60 months

Principal 83%Interest 17%
Amount financed
$30,679.00
Total interest
$6,196.91
Sales tax
$2,080.00
Total of payments
$36,875.91

Estimates only. Actual APR, tax treatment, dealer fees, and lender terms vary by credit, state, and dealership. This tool does not constitute a credit offer or financing advice.

How this auto loan calculator works

Enter the vehicle price, down payment, trade-in, sales tax, APR, and loan term. We compute the financed amount and a standard amortizing payment.

See monthly payment, total interest, and the full schedule so you can compare offers before you buy or refinance.

Export the breakdown when you need it — then keep the car's real history in your KillTire garage after purchase.