WLTP is the official lab test used to give new cars a range figure. Real-world range is usually lower, because weather, speed, heating and terrain all use extra energy. Treat WLTP as a fair way to compare cars, not a promise of how far you will go.

What is WLTP?

WLTP stands for Worldwide Harmonised Light Vehicles Test Procedure. It is the standard test used in the UK and Europe to measure fuel economy, emissions and electric range. The test runs in a laboratory and covers a mix of urban, suburban, main road and motorway driving.

WLTP replaced the older NEDC test and gives more realistic figures. Because every car is tested the same way, it is the fairest way to compare one electric car with another.

Why is real-world range lower than the WLTP figure?

The lab cannot copy every journey. In everyday driving, several things use extra energy:

Cold weather, which slows the battery chemistry and means more energy goes on heating
Sustained motorway speeds, where air resistance rises sharply
Heating, demisting and air conditioning
Heavy loads, roof boxes and towing
Hills, which use more energy on the way up than regenerative braking recovers on the way down
Short trips in winter, where the car spends energy warming the cabin and battery

The gap varies from car to car and from season to season. Many drivers see their best range in summer around town and their lowest on cold motorway runs.

How can I get closer to the official range?

Pre-heat or pre-cool the car while it is still plugged in
Use heated seats and a heated steering wheel, which use less energy than heating the whole cabin
Keep tyres at the pressures in the handbook
Drive smoothly and make use of regenerative braking
Take off roof bars and boxes when you do not need them
Plan longer trips with a charging stop rather than relying on the last few miles

How should I use range figures when choosing an EV?

Start with your longest regular journey, then allow a margin for winter and motorway driving. If a car's WLTP range comfortably covers that with room to spare, it is likely to suit you. Our EV hub and guide to home or public charging explain how charging fits in, and the running cost calculator helps you compare costs.

Common questions

Does range drop as the battery ages?

Batteries lose some capacity over time, so an older electric car may have less range than when it was new. A battery health report is worth asking for when buying a used EV.

Is the range shown on the dashboard more accurate than WLTP?

The dashboard estimate is based on recent driving, so it reflects your conditions better. It can change quickly when the weather, speed or driving style changes.

Where can I find a car's official WLTP figures?

Manufacturers publish them, and the Vehicle Certification Agency explains how official testing works.

Thinking about an electric car?

Browse the cars we have in stock or call our sales team in Barnsley, South Yorkshire on 01226 574410.

Updated October 2026.

WLTP vs Real-World EV Range: Why They Differ