EV Range & Consumption

An EV’s consumption is energy per distance. From a trip you can measure it as kWh used (the car’s trip meter or a charger’s delivered energy) or as battery percentage used times the usable capacity, divided by the distance. Wh/km, kWh/100 km (÷ 10), mi/kWh (1000 ÷ Wh/km ÷ 1.609344) and kWh/100 mi are the same number in different units; the page converts between all four.

Range = usable capacity ÷ consumption is arithmetic, not a rating: it assumes the trip you measured. A planned trip’s energy is consumption × distance, its share of the pack is that divided by usable capacity (over 100 % means a charging stop), and the energy from the grid is the battery energy divided by the charging efficiency you enter — AC charging typically loses some percent to the onboard charger and battery heating; the loss is yours to state. Cost is grid energy × your price per kWh.

Speed (aerodynamic drag grows with the square of speed), cold weather and cabin heating, hills, load, tyres and regeneration all move consumption; a short trip is dominated by warm-up. Usable capacity is less than the nominal pack size and falls with age. No vehicle data, rated ranges or efficiency defaults are embedded. Nothing leaves the browser; the same four anonymous usage counts as the rest of the site apply.