EV Range Calculator
Calculate how far your electric car will go on a full charge, based on battery capacity and consumption. Also see a more realistic range with a safety margin for cold weather.
How to use the EV range calculator
- Enter the battery capacity of the electric car in kWh — you'll find this in the car's specifications.
- Enter the car's consumption in kWh per 100 km. Use the average consumption from the car's trip computer for a more realistic figure than the rated value.
- The calculator shows the range on a full charge, plus a more conservative range with a 10% margin for cold weather and highway driving.
How the range is calculated
Range is found by dividing the battery capacity by the consumption per 100 km, then multiplying by 100:
With a 64 kWh battery and a consumption of 17 kWh/100 km, the range is 64 ÷ 17 × 100 ≈ 376 km.
Why stated range rarely matches reality
The range a manufacturer states is measured in a standardised test cycle under controlled conditions. Real driving involves higher speeds, more variation, extra weight and a climate that is rarely ideal. Motorway speeds are particularly costly, because aerodynamic drag grows with the square of velocity — going from eighty to a hundred increases drag by around fifty percent.
Cold pulls in the same direction, for two reasons. The battery delivers less well at low temperatures, and heating the cabin has to come from that same battery. A realistic estimate therefore adds a winter consumption premium, and uses the actual consumption the car reports over time rather than the manufacturer's figure.
Frequently asked questions
Why doesn't the range match the manufacturer's WLTP/EPA figure?
Standardized tests like WLTP or EPA are run under controlled conditions and often give an overly optimistic picture. Real-world consumption is affected by temperature, speed, driving style, tires and load, and can differ significantly from the rated range.
Why is range lower in winter?
Cold reduces battery efficiency, and energy is used to heat the cabin and battery. Many EVs lose 20–30% range in cold winter driving compared to summer conditions.
How do I find my actual consumption?
Your car's dashboard or app usually shows an average consumption in kWh/100 km over a period. Use this figure in the calculator for a more accurate result than the manufacturer's rated figure.