Cost Per Mile Calculator
Calculate the full cost per mile to operate your vehicle from fuel, insurance, maintenance, depreciation, and your annual mileage.
How to use this tool
- Enter how many miles you drive per year.
- Enter your annual fuel cost.
- Add insurance, maintenance, and depreciation for the year.
- Include other costs like registration, tolls, and financing.
- Read your total and fuel-only cost per mile.
Gas is just one piece. This calculator adds fuel, insurance, maintenance, depreciation, and fees, then divides by your mileage to reveal the true cost of every mile you drive.
Formula
Total cost per mile sums every annual operating cost and divides by miles driven:
Annual cost = Fuel + Insurance + Maintenance + Depreciation + Other
Cost per mile = Annual cost ÷ Annual miles
The fuel-only rate is shown separately as Fuel ÷ Annual miles for comparison.
How it works
The pump price is only a fraction of what each mile really costs. Insurance, maintenance, registration, and especially depreciation are fixed or semi-fixed costs that quietly add up. Spreading them across the miles you actually drive gives a true cost-per-mile figure — the number you need to evaluate a commute, a side gig, or whether to drive or fly.
This calculator adds five annual cost buckets and divides by your yearly mileage. Depreciation usually dominates for newer cars, while older, paid-off vehicles shift the weight toward fuel and repairs. Because fixed costs are spread over more miles, driving more lowers the per-mile cost even as the annual total rises.
For reference, AAA's annual study and the IRS standard mileage rate both estimate all-in driving costs in the high-50-cent to 70-cent-per-mile range for a typical new car, which is a useful sanity check on your inputs. Use your own depreciation and insurance figures for accuracy — they vary widely by vehicle, location, and driver.
Worked example
12,000 miles/yr with $8,000 of annual costs
- Annual cost = $2,000 fuel + $1,400 insurance + $1,000 maintenance + $3,000 depreciation + $600 other = $8,000.
- Cost per mile = $8,000 ÷ 12,000 miles = $0.667.
- Fuel-only per mile = $2,000 ÷ 12,000 = $0.167.
Total cost per mile $0.667 | Total annual cost $8,000.00 | Fuel cost per mile $0.167
Cost per mile by total annual cost and miles driven
| Annual cost | 8,000 mi | 12,000 mi | 15,000 mi |
|---|---|---|---|
| $6,000 | $0.750 | $0.500 | $0.400 |
| $8,000 | $1.000 | $0.667 | $0.533 |
| $10,000 | $1.250 | $0.833 | $0.667 |
| $12,000 | $1.500 | $1.000 | $0.800 |
Key terms
- Cost per mile
- Total annual cost of owning and operating a vehicle divided by the miles driven in that year.
- Depreciation
- The yearly loss in a vehicle's market value — typically the single largest ownership cost for newer cars.
- Fixed vs variable costs
- Fixed costs (insurance, registration, depreciation) accrue regardless of miles; variable costs (fuel, tires) scale with driving.
- IRS standard mileage rate
- A per-mile figure the IRS publishes to approximate the cost of operating a car for business, useful as a benchmark.
Frequently asked questions
- What is a typical cost per mile to drive?
- AAA and IRS estimates put all-in driving costs roughly in the $0.55-$0.75 per mile range for a newer car. Older, paid-off vehicles can run well under $0.40 because depreciation has slowed.
- Why include depreciation?
- Depreciation is a real cost — the car is worth less each year whether or not you sell it. Ignoring it badly understates the true cost of driving, especially for newer vehicles.
- How can I lower my cost per mile?
- Keep a car longer to slow depreciation, shop insurance, do routine maintenance to prevent big repairs, and drive efficiently. Spreading fixed costs over more miles also reduces the per-mile figure.