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MPGe Calculator

Convert electric-vehicle consumption into MPGe using the EPA's 33.705 kWh-per-gallon equivalence, and compare the running cost against petrol.

Every figure below is labelled in the currency you pick. Amounts are not converted — enter values in the same currency.

mi
kWh
$/kWh
$/gal
MPGe
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What MPGe really measures

The EPA defines one gallon of gasoline as energetically equal to 33.705 kWh, which lets an electric car be scored on the same scale as a combustion one. It compares energy at the vehicle, not cost and not emissions — a 100 MPGe car in a coal-heavy grid and the same car on hydro have identical MPGe and very different carbon footprints.

The formula

MPGe = miles ÷ kWh × 33.705

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 MPGe Calculator

  1. Fill in each field with your own figures — the defaults are only there as an example.
  2. The result updates as you type, so there is no button to press.
  3. Check the breakdown under the main result for the supporting numbers.
  4. Use the copy button to take the result with you, or share the link to reload the same inputs.

MPGe Calculator — frequently asked questions

Is this mpge 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 mpge calculator.

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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