EV Range Calculator
Cold and speed, which the WLTP figure does not include.
Work out EV Range. Cold and speed, which the WLTP figure does not include. Answers in the units the job actually uses.
Realistic range
397 km
Matching the rated 397 km
Official WLTP and EPA figures come from a laboratory at moderate temperature and moderate speed. They are reproducible and comparable between cars, which is what they are for, and they are not a forecast of your journey. Cold is the largest single factor. Below freezing a car with a heat pump loses roughly 20% and one with a resistive heater closer to 35%, because cabin heat comes out of the same battery that drives the wheels — a petrol engine gets that heat free as waste. Preconditioning while plugged in recovers a good part of it. Speed is the second factor and it is entirely aerodynamic. The difference between 110 and 130 km/h on a motorway is far larger than most drivers expect, and on a long trip the slower speed frequently arrives sooner once the charging stop it saves is counted.
How the EV Range Calculator works
Realistic electric range from battery size, rated consumption, temperature and speed. Official figures come from a laboratory at moderate temperature and moderate speed — reproducible, comparable between cars, and not a forecast of your journey.
Also known as: electric car range in winter · real world ev range · why is my ev range so low · wltp vs actual range
Frequently asked questions
How much range do you lose in cold weather?
Roughly 20% below freezing with a heat pump, and closer to 35% with a resistive heater. Cabin heat comes out of the same battery that drives the wheels, where a petrol engine gets it free as waste heat.
Does driving fast reduce EV range?
Considerably, and it is entirely aerodynamic. The difference between 110 and 130 km/h is far larger than most drivers expect, and on a long trip the slower speed often arrives sooner once the charging stop it saves is counted.
Why is WLTP range so optimistic?
It is a standardised laboratory cycle at moderate temperature with no heating or cooling load, designed to compare cars fairly rather than to predict a journey. EPA figures are closer to real use but built the same way.
What is usable battery capacity?
The portion the car will actually let you use, typically 90 to 95% of the nominal figure. The buffer at each end protects battery longevity, and it is why a 77 kWh battery is often advertised as 82.
How do I get more winter range?
Precondition while plugged in, so cabin and battery heating come from the wall rather than the battery. After that, seat and steering wheel heating use a fraction of what cabin heating does, and moderating motorway speed is the largest remaining lever.
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