Range is the first number every EV buyer looks at, and the first number that causes confusion. A car advertised with an impressive range can deliver far less on a cold motorway morning, and that gap leaves many new owners feeling misled. The truth is less dramatic than the complaints suggest. The brochure figure is a laboratory measurement, taken under fixed conditions that no real driver ever reproduces, and real world range depends on speed, weather, terrain, heating and driving style. This guide explains how range is measured, what shrinks it, and how to estimate the figure you will actually get, so you can buy with clear eyes and drive without range anxiety.
How claimed range is measured
Claimed range comes from a standard laboratory test cycle. The car is run on a rolling road through a set pattern of speeds and stops, at a controlled temperature, with no heating or air conditioning running and no wind or hills to fight. Different regions use different test cycles, and some are more optimistic than others, so the same car can carry a different claimed range in different markets. The test is useful for comparing cars fairly, because every car faces the same conditions, but it is not a promise of what you will get on your commute. Think of the claimed figure as a best case result under ideal conditions, not as a guarantee for everyday driving.
What cuts real world range
Speed is the biggest factor. An EV is very efficient in town, where low speeds and regenerative braking recover energy every time you slow down, but on a motorway at high speed the car fights air resistance constantly and has no braking to recover energy from. Cold weather is the second biggest factor. Batteries work less efficiently when cold, and the heater draws a meaningful amount of power, so winter range can drop noticeably compared with summer. Heating the cabin is expensive in energy terms, which is why heated seats and a heated steering wheel are worth using, since they warm the driver directly for far less energy than heating the whole cabin.
How to estimate your real range
A realistic starting point is to take the claimed range and expect around three quarters of it in mixed everyday driving in mild weather, and less in winter or on long motorway runs. That is a rough rule, not a precise formula, and it varies by car, because some models are closer to their claimed figure than others. The best evidence comes from independent real world tests, where reviewers drive the car on a fixed route in normal conditions and report the distance achieved. Owner forums and long term tests are also useful, since they show how a car performs across seasons. If you can, take a test drive on a route like your own commute and watch the range fall over a known distance, since that tells you more than any brochure.
Also pay attention to efficiency, usually shown as energy used per distance, because it tells you how well the car turns battery into movement. A lighter, more aerodynamic car with a smaller battery can travel as far as a heavier car with a larger battery, and it will usually charge faster and cost less to run. When you compare two cars, look at real world range and efficiency together, not just the battery size or the headline range. For a wider view of how EVs work and what ownership involves, read our guide to electric cars explained, a complete beginner guide to buying and owning an EV, which covers batteries, charging and running costs in plain language.
Range anxiety, and how to beat it
It helps to change how you think about refuelling. A petrol car runs until nearly empty and then fills in minutes, while an EV tops up little and often, at home overnight, at work, or during a break on a long trip. Once topping up becomes a habit, the battery level stops being a source of stress, because the car is almost always charged when you need it. Drivers who cannot charge at home feel this anxiety more, since every charge needs a trip to a public charger, which is why checking your charging options before buying matters so much.
When range really matters, and when it does not
Long range matters most for drivers who cover very long distances in a single day, who tow, or who drive in areas with few fast chargers. For everyone else, a moderate range car that covers the normal week with ease is usually the better buy, because it costs less, weighs less, and charges faster relative to its size. A car with a huge battery that you rarely use is paying for capacity that sits idle, while a car with a sensible battery that you charge at home every night will serve you just as well day to day. If you are comparing different types of electrified car, our guide to EV versus hybrid versus plug in hybrid, which one fits you explains where a plug in hybrid or a hybrid might suit a driver whose trips are mostly short with occasional long journeys.
Simple habits that stretch your range
A few habits make a real difference. Preheating or precooling the car while it is still plugged in means the cabin is comfortable before you leave, using mains power instead of battery. Driving smoothly, anticipating traffic and using regenerative braking well can add meaningful distance, especially in town. Keeping tyres at the correct pressure, removing roof boxes when not needed and avoiding unnecessary weight all help. On a motorway, slowing down even a little makes a bigger difference than most drivers expect, because air resistance rises sharply with speed. None of these habits requires effort once they become routine, and together they can turn a tight journey into a comfortable one. If you are buying a used EV, our guide to buying a used EV, a complete checklist before you pay covers battery health checks and the other inspections that matter before you hand over money.
Conclusion
Claimed range is a laboratory figure, and real world range is always lower, shaped by speed, weather, terrain and driving style. That is not a reason to avoid an EV, it is a reason to judge cars on real world evidence and to match the car to your actual week. Most drivers need far less range than they think, because home charging resets the battery every night and long trips need only a little planning. Take the claimed figure, expect around three quarters of it in normal use and less in winter, check independent tests, and choose the car that covers your longest regular day with margin. Do that, and range becomes a number you rarely think about.
Why is my EV range lower than the advertised figure
The advertised figure comes from a laboratory test at a controlled temperature with no heating, wind or hills. Real driving adds speed, cold weather, heating and terrain, all of which use extra energy. Expect around three quarters of the claimed figure in normal use, and less in winter.
Does cold weather really reduce EV range
Yes, cold weather reduces range because the battery works less efficiently when cold and the heater draws power. Preheating while plugged in and using heated seats instead of full cabin heat helps. Expect noticeably lower range in winter and plan charging stops with that in mind.
Is motorway driving bad for EV range
Motorway driving at high speed uses more energy than town driving, because the car fights air resistance constantly and cannot recover energy through braking. Slowing down a little makes a real difference. Plan charging stops on long motorway trips rather than trying to cover the whole distance on one charge.
How can I make my EV go further on one charge
Drive smoothly, preheat or precool while plugged in, use heated seats instead of full cabin heat, keep tyres at the correct pressure and remove roof boxes when not needed. On motorways, a slightly lower speed helps more than most drivers expect.
