Guide to electric vehicle range

Understanding electric vehicle range figures

When you're comparing electric vehicles, one of the first numbers you'll probably look at is the official range.

You'll see this figure in manufacturer specifications, vehicle listings and lease deals. It's useful when comparing different electric cars, but it shouldn't be treated as a guaranteed number of miles you'll get from a full charge.

That's because your actual range depends on how, where and when you drive. Temperature, speed, road conditions, driving style, passengers and even the terrain can all make a difference.

At DriveElectric, we use real-world range estimates alongside official WLTP figures to give you a more practical idea of what you might expect from an EV.

If you'd like a broader overview of the factors that affect range, see our guide to electric vehicle range and everything you need to know.

What is WLTP range?

WLTP stands for Worldwide Harmonised Light Vehicle Test Procedure. It's the standardised test used to measure the official fuel consumption, emissions and electric range of new cars in the UK and Europe.

The test takes place under controlled conditions, which means every vehicle is assessed using the same methodology. That's useful because it gives you a consistent figure to compare different cars.

However, real-world driving is much less predictable.

You won't always drive at the same speeds, on the same type of roads or in the same temperature. You might have passengers and luggage in the car, use the heating or air conditioning, or spend part of your journey climbing hills.

So think of the WLTP figure as a standardised comparison figure, rather than a promise of the range you'll achieve on every journey.

WLTP replaced the older NEDC testing system in 2018. The newer test was designed to better reflect everyday driving than NEDC, but no laboratory test can replicate every combination of real-world conditions.

What affects an EV's real-world range?

Driving in the real world there is a significant combination of factors that will affect the vehicle’s performance. These include;

Outside temperature

Temperature can have a noticeable effect on an EV's efficiency.

Cold weather can reduce battery efficiency and increase the amount of energy needed to heat the cabin. This means you may see less range in winter than you would during warmer months.

In warmer conditions, the battery can operate more efficiently and you may see improved range.

This doesn't mean an EV suddenly becomes impractical in cold weather. It simply means it's worth allowing some extra range when temperatures drop.

For more practical advice, see our guide to winter driving.

Speed

Speed has a significant effect on energy consumption.

As you drive faster, aerodynamic drag increases, meaning the car needs more energy to maintain its speed. This is why motorway driving can use more energy per mile than slower urban or A-road driving.

A steady, moderate speed will generally use less energy than driving at higher speeds. For example, driving at 55mph rather than 70mph can make a significant difference to efficiency, although the exact difference varies between vehicles and conditions.

There isn't one fixed percentage of range you will gain by driving at a particular speed. Your vehicle, weather, road and driving style all matter.

Heating, air conditioning and other systems

Heating and air conditioning use electricity, so they can affect range.

Heating tends to have a more noticeable effect in winter, particularly when the battery is cold and the cabin needs to be brought up to temperature.

Where available, pre-conditioning the car while it's connected to a charger can help. You can warm or cool the cabin before setting off without relying entirely on energy from the battery once you're on the road.

Other systems such as lights, windscreen wipers and the infotainment system also use electricity, but their effect on overall range is generally much smaller.

Topography

Hilly routes usually use more energy than flat ones. Climbing requires the car to use more energy, while regenerative braking can recover some energy when slowing down or travelling downhill.

Regeneration helps, but it doesn't completely cancel out the energy used to climb. A hilly journey will generally require more energy than an otherwise similar flat journey.

Battery age 

Like any rechargeable battery, an EV battery gradually loses some of its original capacity over time.

That doesn't mean an older EV will suddenly have significantly less range. Battery degradation varies depending on the vehicle, battery chemistry, usage and charging history, and modern EVs are designed to manage battery health over many years.

Recent research into used EV battery health also shows why battery age alone doesn't tell the whole story when assessing a used electric vehicle. A well-maintained older EV can still offer plenty of useful range.

Accelleration and driving style

How you drive also matters. Hard acceleration and frequent heavy braking can increase energy consumption. Smooth acceleration, anticipating traffic and allowing the car to slow naturally can help improve efficiency.

Regenerative braking can recover some energy that would otherwise be lost as heat through the brakes. It can also reduce wear on the friction brakes.

Leaving a sensible gap from the vehicle in front gives you more time to anticipate changes in traffic and avoid unnecessary acceleration and braking.

What do DriveElectric's real-world range figures mean?

When you look at our EV lease deals, you'll see several range figures.

The vehicle range figures you find on all our lease deals shows four values. We display the 'official' WLTP range figure supplied by the manufacturer and calculated under laboratory conditions and then three 'real world' values.

• Combined real-world range – an estimated average range across a typical year of driving.
• Winter real-world range – an estimate for colder conditions, when lower temperatures can reduce efficiency.
• Summer real-world range – an estimate for warmer conditions, when battery efficiency is generally better.

The aim is to give you more context than the official figure alone.

For example, if you're choosing between two EVs with similar WLTP figures, their estimated real-world ranges can help you understand how they may perform in different conditions.

Our figures are particularly useful when you're thinking about how an EV will fit into your own routine. A car used mainly for short urban journeys will have different energy demands from one regularly used for long motorway trips.

Can you trust the WLTP range figure?

Yes – but it's important to understand what it represents.

WLTP gives you a standardised figure that can be used to compare vehicles. It's not designed to predict exactly how many miles every driver will achieve.

Your own range will vary depending on factors such as:

• Temperature
• Speed
• Road type
• Traffic
• Driving style
• Topography
• Use of heating and air conditioning
• Vehicle load
• Tyre condition and pressure

That's why we believe it's useful to look at both the official figure and a realistic range estimate when choosing an EV.

How much range do you actually need?

There's no single range figure that every EV driver needs.

If most of your journeys are short, you may not need the longest-range battery available. If you regularly travel long distances, a higher-range EV may reduce the number of charging stops you need.

It's worth thinking about your usual journeys rather than the maximum journey you might make once or twice a year.

For longer trips, charging is part of the journey rather than simply something you do when the battery is empty. Planning where you'll stop can make longer-distance EV driving straightforward.

Our EV road trip checklist for the UK and Europe covers some of the practical things to consider before setting off on a longer journey.

Choosing an EV based on range

Range is an important part of choosing an electric car, but it shouldn't be the only consideration.

Think about your typical mileage, where you drive, access to charging and how often you make longer journeys. Then compare the cars that fit those needs.

You can browse DriveElectric's electric vehicle range to compare available EVs and find a model that suits your driving needs.

A final word on real-world range

WLTP gives you a useful, consistent way to compare electric vehicles. Real-world range tells a different part of the story.

No single number can predict exactly how far an EV will travel for every driver and every journey. The most useful approach is to understand what affects efficiency and choose a vehicle with enough range for the way you actually drive.

DriveElectric's real-world range figures are provided as an illustration based on our own testing and third-party data. They are not a guarantee of the mileage you will achieve. Actual range will vary depending on driving conditions, vehicle use and other factors.

Last updated: Sept 2026
Published: Feb 2023