Car Cost Calculator

The monthly payment is only part of the story. See what a car really costs you per month and per mile once depreciation, interest, fuel, insurance and upkeep are counted.

🔒 Everything is calculated in your browser. Your numbers never leave your device.

Your car

Resale value is your own estimate. Depreciation is the purchase price minus resale value. Opportunity cost of the money is not included.

Real cost per month$681
Cost per mile$0.68
Cost per year$8,168
Total cost of ownership$40,839

Where the money goes

Depreciation$15,000
Loan interest$3,839
Fuel$7,000
Insurance$9,000
Maintenance$4,500
Fees$1,500

Payment vs real cost

Monthly loan payment: $464 · Real cost per month: $681

The loan payment covers only part of what you really spend each month.

Keep it longer or shorter

YearsReal cost per monthCost per mile
3$871$0.87
5$681$0.68
7$591$0.59

What if the resale value changes?

Same car, resale valueReal cost per monthTotal cost of ownership
40%$731$43,839
50%$681$40,839
60%$631$37,839

How it works

  1. Enter the purchase price, how many years you will keep the car and what you expect it to be worth when you sell it.
  2. Add your yearly driving, fuel economy, fuel price, insurance, maintenance and fees.
  3. If you finance, enter the down payment, interest rate and loan term. For cash, put the full price as the down payment.
  4. Read the cost per month, per mile and in total, then check the tables for a longer or shorter ownership and a different resale value.

What total cost of ownership means

Total cost of ownership is everything the car costs between the day you buy it and the day you sell it, minus what you get back when you sell. The biggest piece is usually depreciation, the drop in value, followed by fuel, insurance, interest and maintenance.

How the numbers are calculated

Depreciation is the purchase price minus the resale value. Interest is what you pay to the lender during the years you own the car, using a standard fixed-payment loan. Fuel is miles divided by miles per gallon, times the price per gallon. All the pieces are added and divided by the years owned, the months and the miles driven.

Frequently asked questions

Why is the real cost higher than my payment?

The payment only repays the loan. It leaves out depreciation you pay at sale, plus fuel, insurance, maintenance, registration and parking. Those can match or exceed the payment itself.

How do I estimate resale value?

Look at listings for the same model that is the age and mileage yours will be when you sell. Use a cautious figure, because it is the biggest number in the result.

Does it include the interest I could have earned on the money?

No. If you pay cash, the money could have been invested elsewhere. That opportunity cost is not included, so the cost of a cash purchase is understated by that amount.

Is my data saved?

Your numbers stay in your browser only. Nothing is sent to a server.