Calculator · EVs & charging
EV charging and driving costs
Compare a charging session or a week of driving at two electricity prices.
Keep a copy of your results.
We’ll email you what you entered and what it came to. We won’t use your address for anything else unless you ask us to.
How this tool works
For a session, energy added is usable battery capacity multiplied by the change in charge percentage. For driving, energy added is kilometres multiplied by driving consumption per 100 km. Energy from the wall divides that amount by charging efficiency. If your consumption figure already includes charging losses, set efficiency to 100% to avoid counting them twice. Annual driving comparisons use 52 weeks. Example prices are editable assumptions, not a live offer. Supply charges, session fees and other plan prices are excluded.
Sources
10 kWh from the wall adds about 9 kWh to the car in a 90% efficiency example; about 1 kWh is lost. Actual charging losses vary. If a consumption figure already includes losses, count them once.
Energy at the wall is not all energy in the car.
10 kWh from the wall
A 90% efficiency example. Actual charging losses vary.
If a consumption figure already includes losses, count them once.
