$ True Car Cost Calculator

How to use it

The monthly payment is not the monthly cost. Enter the car price, your down payment or trade-in value, the APR, and the loan term using the presets of 36, 48, 60, or 72 months (60 is the default starting point). Then enter the ownership costs: insurance per month, miles driven per month, the car's MPG, and the gas price per gallon, from which the tool computes fuel as miles divided by MPG times gas price. Add a monthly maintenance and repair reserve and your yearly registration, taxes, and inspection, which the tool divides by 12. The breakdown shows the loan payment, total interest over the life of the loan, insurance, fuel, maintenance, and registration as separate lines. Then the punch line: a box showing what you thought it was, just the payment, versus what your car actually costs, everything included. The tool is upfront about what it skips: depreciation, the biggest ownership cost, is not included here. Rough estimates for planning only, not financial advice.

Worked example

Example only, not typical prices. A $28,000 car, $3,000 down, 8.5% APR, 60 months. The loan payment is $512.91 and total interest over the loan is $5,774.80. Add $180 insurance, fuel of 1,000 / 28 x $3.10 = $110.71, $75 maintenance reserve, and $400 per year in registration and fees, or $33.33 per month. The car actually costs $911.96 per month, which is $399.05 more than the payment alone.

FAQs

Why is the true cost so much higher than the payment?

Insurance, fuel, maintenance, and fees are real monthly costs the payment never shows. On a typical example they can nearly double the number, which is the whole point of the breakdown.

What is depreciation and why is it excluded?

Depreciation is the value the car loses as it ages, and it is the biggest cost of ownership. The tool says plainly that it does not include it, so the true cost shown is still a low estimate.

Is a longer loan term cheaper?

The monthly payment drops, but total interest rises. Try 72 months in the presets and watch the total interest line: that is the real price of the lower payment.

What maintenance reserve should I use?

$75 a month is the default starting point. Newer cars under warranty cost less; older cars cost more. Adjust it to your car's reality.

Does the tool include insurance?

Yes, as a monthly line you enter yourself, because insurance varies so much by driver, car, and location that no default would be honest.

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