Automotive
EV range estimate
Estimate EV driving distance while retaining a battery reserve.
Calculators / Automotive / EV efficiency converter
EV efficiency converter calculator
Compare EV efficiency figures on the same measurement basis.
On this page
Consumption18kWh/100 km
Consumption180Wh/km
Efficiency3.45miles/kWh
Calculator controls
How to calculate
Compare EV efficiency figures on the same measurement basis.
Wh/km = 10 × kWh/100 km; miles/kWh = 100 ÷ (1.609344 × kWh/100 km).
Worked example
Efficiency / consumption: 18; Input unit: 0.
Consumption: 18 kWh/100 km; Consumption: 180 Wh/km; Efficiency: 3.45 miles/kWh.
Assumptions and limits
Compare EV efficiency figures on the same measurement basis. Battery energy and electricity measured at the wall are different; do not add charging losses again if the input already includes them.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Understanding the result
Compare EV efficiency figures on the same measurement basis. Battery energy and electricity measured at the wall are different; do not add charging losses again if the input already includes them.
When this tool is useful
Wh/km = 10 × kWh/100 km; miles/kWh = 100 ÷ (1.609344 × kWh/100 km).
Understanding your inputs
| Input | What to enter |
|---|---|
| Efficiency / consumption | Enter a number of at least 0.000001 and no more than 1000000000000. |
| Input unit | Enter one of the available options. |
Frequently asked questions
Why can wall-to-wheel efficiency differ from a dashboard figure?
A dashboard often reports battery energy while a wall meter includes charging losses. Compare figures measured at the same point and avoid adding losses twice when the input already includes them.