Vehicle Efficiency Comparator

What type of vehicle do you have? Enter your 70mph highway efficiency (MPG or mi/kWh): Cost per gallon (USD): Cost per kWh (USD):

CO₂ emissions for electric vehicles use the average U.S. grid mix (~370 g CO₂/kWh).
EV efficiency values are based on multiple independent 70mph real-world range tests conducted in 60–85°F conditions with minimal elevation and wind impact.
This website is for fun and not meant to be perfect.