🚗 Auto Loan Calculator

Calculate your exact monthly car payment including sales tax, trade-in credit, and true total cost.

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Inputs
$
$
$
%
%
mo
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Results
Monthly Payment
Vehicle Price
Amount Financed
Sales Tax ($)
Total Interest
Total Cost of Vehicle
Interest as % of Loan
Financed = Price + Tax − Down − Trade-In
M = P × [r(1+r)ⁿ] / [(1+r)ⁿ − 1]

Sales tax is applied to the vehicle price before subtracting your down payment and trade-in. Only the financed amount accrues interest — larger down payments dramatically reduce total interest paid.