Auto Loan Interest Calculator

How to use Auto Loan Interest Calculator

1. Enter your figures in the units shown beside each field. Keep monetary inputs in the same currency; money results are currently displayed in USD.
2. Select the unit standard where the form offers a choice, then choose Calculate.
3. Read the breakdown and compare the worked example below. Change one assumption to see its effect.

Formula used

P = price × (1 + tax/100) + fees − down payment − trade-in. r = annual rate/1200. Payment = P × r ÷ (1 − (1+r)^(-months)); at zero interest, payment = P/months.

Worked example

A 12,000 principal at 6% annual interest over 12 months gives about 1,032.80 per month and 393.57 total interest, before differences in lender fees or rounding.

What the result means

The model taxes the full vehicle price. Trade-in tax credits, daily interest, balloon payments and lender-specific charges may require a different model.

Check your result

Results retain calculation precision internally and round for display. Keep the input values with the result so you can reproduce it. Use Reset to restore the example inputs, or Copy result to copy the displayed answer.

If the result does not agree with your own calculation, report the page, inputs and expected answer. See our methodology and reference sources for the standards used.

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