What is the Cost Per Mile Calculator?
Calculate the true cost per mile of owning and driving a vehicle. Cost per mile reveals the true expense of driving by combining fuel with insurance, maintenance, registration and depreciation.

How to use the Cost Per Mile Calculator
- Enter your miles per year, your fuel per year, your insurance per year, your maintenance & tires per year and the remaining fields.
- Results update automatically as you type; you can also press Calculate.
- Read the output: cost per mile, annual cost, monthly cost.
- Use the 📊 chart to see the result visually, then copy or share it.
Formula and method
Worked example
With miles per year = 12,000, fuel per year = $1,800, insurance per year = $1,500, maintenance & tires per year = $900, depreciation per year = $3,500, the Cost Per Mile Calculator returns cost per mile: $0.683; annual cost: $8,200.00; monthly cost: $683.33.
Where the Cost Per Mile Calculator helps in real life
You drive 12,000 miles a year and want to know what your commute really costs. Adding all yearly costs and dividing by miles gives a figure far higher than fuel alone.
You are deciding between keeping a car and using rideshare and transit. Comparing your cost per mile with those prices gives a fair basis for the decision.
Common mistakes to avoid
- Counting only fuel and leaving out depreciation.
- Forgetting insurance, registration and parking fees.
- Guessing annual mileage instead of checking the odometer.
- Ignoring tires and other wear items.
💡 Practical tip: Insurance and depreciation often add more per mile than fuel, especially on newer cars.

Tips for better results
- Collect a full year of receipts for the most accurate figure.
- Read your odometer on the same date each year.
- Recalculate when fuel prices or insurance change.
Frequently asked questions
What does the Cost Per Mile Calculator do?
Calculate the true cost per mile of owning and driving a vehicle.
How is it calculated?
The Cost Per Mile Calculator uses this method: Cost/mile = Total annual cost ÷ Miles.
Can you show an example?
With miles per year = 12,000, fuel per year = $1,800, insurance per year = $1,500, maintenance & tires per year = $900, depreciation per year = $3,500, the Cost Per Mile Calculator returns cost per mile: $0.683; annual cost: $8,200.00; monthly cost: $683.33.
Is the Cost Per Mile Calculator accurate?
Yes. It uses standard formulas and exact constants, and the results are verified by our automated test suite. Values are displayed to up to 12 significant digits.
Is this tool free and private?
Yes — the Cost Per Mile Calculator is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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