Cost Per Mile Calculator
Work out the real cost of a mile driven, including the costs people forget.
Every figure below is labelled in the currency you pick. Amounts are not converted — enter values in the same currency.
Fuel is usually a third of it
Most people price a journey at the cost of the petrol, which is roughly a third of the true figure. Depreciation is typically the largest single item and the most invisible, because nobody writes a cheque for it. This is also why mileage reimbursement rates are several times the fuel cost per mile.
The formula
Cost per mile = total annual cost ÷ annual mileage
Every result on this page comes from this formula. Nothing is rounded until the final display, so figures match a spreadsheet to the cent.
How to use the Cost Per Mile Calculator
- Fill in each field with your own figures — the defaults are only there as an example.
- The result updates as you type, so there is no button to press.
- Check the breakdown under the main result for the supporting numbers.
- Use the copy button to take the result with you, or share the link to reload the same inputs.
Cost Per Mile Calculator — frequently asked questions
Is this cost per mile calculator free to use?
Yes. Every calculator on the site is free, needs no sign-up, and runs entirely in your browser, so your figures never leave your device.
How accurate is the result?
The maths is exact for the formula shown on the page. Accuracy in the real world depends on your inputs and on assumptions the formula cannot see, so treat the output as a well-grounded estimate rather than a quote.
Can I use it on my phone?
Yes. The page is responsive, weighs a few kilobytes and works offline once loaded, so it behaves the same on a phone as on a desktop.
What people search for
This page answers each of these searches. They are the exact phrases visitors use to find the cost per mile calculator.
- cost per mile calculator
- mileage cost calculator
- car cost per mile
- vehicle running cost per mile
- true cost of driving
About this calculator
Written and reviewed by The Samsung Calculator editorial team. Every calculator is written against a published formula, reviewed against at least one independent reference implementation, and dated when it changes.
Last reviewed August 19, 2026 · Calculation runs client-side · No data collected · Report an error