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Auto Loan Calculator

Monthly car payment, total interest, and payoff schedule.

Estimate the monthly payment, total interest, and full payoff cost of a fixed-rate auto loan from price, down payment, trade-in, rate, and term.

Nadia Almasri By Nadia Almasri
Published Last reviewed 1 min read

Inputs

$
$
$
%
months
%

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

M = P · r / (1 − (1 + r)−n)

Where P is the financed amount (price − down payment − trade-in), r the monthly rate, and n the number of monthly payments.

In depth

Estimate the monthly payment, total interest, and full payoff cost of a fixed-rate auto loan from price, down payment, trade-in, rate, and term.

Frequently asked questions

Only if your lender is financing the tax — some states roll it in, others require it up front at signing. Use the advanced field to include it when applicable.

No. Leases use a different payment structure (money factor + residual value). This tool is for standard amortizing auto loans.