What an Electric Car Actually Costs to Run
Cost per mile, the three prices of electricity, and where the savings are smaller than the headlines suggest.
Miles Per kWh Calculator
Measure real electric-vehicle efficiency in miles per kWh and convert it into cost per mile at your own electricity price.
Every figure below is labelled in the currency you pick. Amounts are not converted — enter values in the same currency.
mi
kWh
$/kWh
Miles per kWh
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How to use the Miles Per kWh 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.
Miles Per kWh Calculator — frequently asked questions
Is this miles per kwh 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.
Related reading
What people search for
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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 15, 2026 · Calculation runs client-side · No data collected · Report an error