Car Cost Per Mile Calculator
Find the true cost of every mile you drive.
Fuel, insurance, maintenance, depreciation, and more.
Results update as you type.
How it works
People rarely know what driving actually costs them per mile, and this car cost per mile calculator answers that question by combining every expense of ownership into one honest rate. Enter your total annual vehicle costs and the miles you drive in a year, and it returns the cost of each mile, a number that reveals the real price of the trips you take for granted. The figure is more revealing than fuel cost alone because owning a car involves far more than gas. Insurance, registration, maintenance, tyres, repairs, and especially depreciation all cost money whether or not you drive, and cost per mile spreads those across the distance you cover. That is why a low-mileage driver often pays a surprisingly high amount per mile: the fixed costs are shared over fewer miles, so each one carries a bigger slice. Knowing your true cost per mile helps in concrete ways. It lets you judge whether a long drive is worth it, set a fair rate when reimbursing yourself or others, compare keeping a car against ride-hailing, and decide whether a second vehicle earns its keep. Because the calculation simply divides total costs by miles, you can plug in different mileage or cost scenarios and immediately see how driving more spreads the fixed burden thinner, or how cutting an expense category lowers the rate for every mile you drive.
cost per mile = total annual costs ÷ annual miles
Cost per mile turns a lump of yearly spending into a single rate by dividing every dollar you put into the car over a year by the number of miles it carried you. Because it folds fixed costs like insurance and depreciation together with variable costs like fuel and tyres, the result reflects the whole burden of ownership spread across distance. Driving more miles lowers the per-mile figure, since fixed costs are shared over a larger base.
Source:Standard cost-per-mile method
We review all our tools from time to time to ensure accuracy.
Worked example
How to use this calculator
- 1
Enter your values
Enter total annual costs and annual miles driven.
- 2
Adjust the options
Fine-tune any options to match your situation.
- 3
Read your result
Cost per mile updates instantly as you type — no button to press.
Frequently asked questions
What costs should I include in the total?
Include everything the car costs you in a year: fuel or charging, insurance, registration and taxes, routine maintenance, tyres, repairs, and depreciation, which is the value the car loses. If you finance, add loan interest. The more complete your total, the more accurate the per-mile figure. Leaving out depreciation is a common mistake that makes driving look far cheaper than it truly is over time.
Why is depreciation so important here?
Depreciation is usually the single largest cost of owning a newer car, yet it is invisible because no bill arrives for it. A car steadily loses value whether it sits or drives, and that lost value is a real cost you pay when you eventually sell or trade it. Including a yearly depreciation estimate in your total is essential for an honest cost per mile, especially for newer vehicles.
Why does driving less raise my cost per mile?
Many car costs are fixed: insurance, registration, and depreciation happen regardless of distance. When you divide those fixed costs by fewer miles, each mile absorbs a larger share, so the per-mile rate rises. Conversely, driving more spreads the same fixed costs over more miles, lowering the rate. This is why occasional drivers sometimes find that alternatives like ride-hailing or car sharing can compete with the true cost of ownership.
How can I use cost per mile for reimbursement?
If you drive for work or lend your car, cost per mile gives a defensible rate to charge. Multiply your rate by the miles driven for a fair reimbursement that covers wear, fuel, and depreciation rather than just gas. Note that tax authorities publish standard mileage rates that may differ from your personal cost, so check the official figure when reimbursement has tax implications for you.
How does this compare to the standard mileage rate?
Government standard mileage rates are averages meant to approximate the cost of operating a typical vehicle, used mainly for tax deductions. Your personal cost per mile can be higher or lower depending on your car's price, fuel economy, insurance, and how many miles you drive. This calculator gives your actual figure, which is more useful for real budgeting decisions, while the standard rate is best reserved for tax purposes.