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Car True Cost

The payment is a third of it. Here is the whole bill.

A $700 car payment feels like the cost of the car. It is not — depreciation, insurance, fuel, maintenance, registration, and loan interest roughly double it. This calculator totals all of it into the two numbers that matter: true cost per month and per mile, so comparisons against transit, used cars, or keeping the old one alive are honest.

Why people use this

Drivers comparing "new car vs keeping the old one" use it to see depreciation as a line item — usually the largest cost and the only one without a bill. Per-mile pricing makes transit and EV comparisons honest.

How it works

  1. Enter purchase price, years kept, and expected resale percent.
  2. Add loan terms, insurance, annual miles, fuel economy and price, maintenance, and registration.
  3. Read the true monthly and per-mile cost — depreciation shown separately because it is the cost nobody feels.

Common questions

What does a car really cost per mile in 2026?

AAA pegs a new car around $0.80–0.90 per mile all-in at 12,000 miles a year — our default scenario lands at $0.84. The biggest line is not fuel: it is depreciation, typically $3,000–5,000 a year on a new car, invisible because it only shows up when you sell.

Why does depreciation get its own line?

Because it is the largest cost and the only one with no monthly bill. A $38,000 car worth $17,000 after 5 years spent $4,200 a year evaporating — more than fuel and insurance combined for most drivers. Buying 3 years old lets someone else pay the steepest part of that curve.

How do I lower the per-mile number?

Keep the car longer (depreciation flattens after year 5 while reliability holds), buy used, and drive it more — per-mile cost falls as fixed costs spread. The worst move is the common one: trading a new car every 3 years, which concentrates the steepest depreciation into every year you own.

Is an EV cheaper per mile?

Usually on fuel and maintenance (charging at home runs 3–5¢/mile versus 12–15¢ for gas), often not on depreciation and insurance yet. Run both here — swap the fuel line for your kWh cost and compare the per-mile numbers directly.

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