EV Efficiency Conversion Calculator

By Weston Willis

Updated 7/7/2026 | 5 min read
EV Efficiency Conversion Calculator

By Weston Willis

Updated 7/7/2026 | 5 min read

MPGe, Wh/mi, kWh/100 km, how do they all connect? Use my EV efficiency conversion calculator below to compare different vehicle specifications across a variety of common units. (Feedback? Let me know.)

EV Unit Conversion Calculator

Try an example
US units
Metric units

Conversions use the EPA equivalence of 33.7 kWh per gallon of gasoline and 1.609344 km per mile.

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About the Author

Weston Willis

At EV Help Hub, I merge my professional automotive industry background with a passion for electric cars. I aim to bring real-world experiences of owning a variety of models, from a Tesla Model 3 to the Rivian R1T, hoping to educate others about the benefits of driving electric.