EV Range Calculator
WLTP range figures rarely match real-world driving. Enter your car's official range and driving conditions to see a realistic estimate of how far you can actually go on a full charge.
Frequently asked questions
How accurate is the WLTP range for electric cars?
WLTP figures are tested under controlled lab conditions and typically overestimate real-world range by 15-30%. Motorway driving at higher speeds, cold weather, and heavy loads all reduce range significantly compared to the official figure.
Why does motorway driving reduce EV range so much?
EVs are most efficient at lower speeds. At motorway speeds (60-70 mph), air resistance increases dramatically and regenerative braking is barely used. This can reduce range by 25-35% compared to urban driving where EVs excel.
How does cold weather affect EV range?
Cold weather can reduce EV range by 20-30%. The battery operates less efficiently in cold temperatures, and the cabin heater draws significant power. Pre-conditioning the car while plugged in and using seat heaters instead of cabin heating can help.
What is a safe range buffer to keep?
Most EV experts recommend keeping at least 10% charge in reserve. Running the battery to near-zero can damage it over time and leaves no margin for unexpected detours. Some drivers prefer a 15-20% buffer for longer journeys.
Do EVs get better range in the city than on the motorway?
Yes. Unlike petrol and diesel cars, EVs are most efficient in city driving thanks to regenerative braking, which recovers energy every time you slow down. City range can actually exceed the WLTP figure in warm conditions.
These calculations are estimates based on 2026/27 HMRC and DVLA rates. Speak to a lender or qualified financial adviser for a personalised quote.