Range is the first question everyone asks about an e-bike - and the honest answer is "it depends". The good news is that the factors are easy to understand, so you can work out a realistic figure for how you actually ride, rather than trusting a best-case number on a spec sheet.
The short answer
Most UK e-bikes do a real-world 25 to 60 miles per charge. Battery size sets the ceiling; how you ride decides where you land. Manufacturer figures are always best-case - expect a bit less.
Most UK e-bikes do a real-world 25 to 60 miles per charge. Battery size sets the ceiling; how you ride decides where you land. Manufacturer figures are always best-case - expect a bit less.
How is e-bike range measured?
Battery capacity is measured in watt-hours (Wh) - think of it as the size of your fuel tank. You get it by multiplying the battery's voltage by its amp-hours: a 36V, 14Ah battery is about 504Wh. The bigger the Wh number, the further the bike can go.
Key takeaway
Compare batteries by watt-hours (Wh), not just voltage or amp-hours - it is the single number that tells you the true tank size.
Compare batteries by watt-hours (Wh), not just voltage or amp-hours - it is the single number that tells you the true tank size.
Real-world range by battery size
Here are honest, real-world figures for typical UK riding - not the best-case lab numbers:
| Battery size | Realistic range | Best for |
|---|---|---|
| ~375 Wh | 25 - 35 miles | Short commutes, town errands |
| ~500 Wh | 35 - 60 miles | The all-round sweet spot |
| ~625 - 750 Wh | 60 - 100+ miles | Long rides, hills, touring |
Our own catalogue bikes sit right in this range - for example the Everfit 27.5 is rated around 60 km (about 37 miles) of claimed range, which lands at the sensible everyday end of real use.
What actually drains the battery?
Five things decide where in the range band you land:
| Factor | Effect on range |
|---|---|
| Assist level | The biggest one - full power can halve your range versus eco mode |
| Hills | Climbing draws heavily on the motor |
| Rider + cargo weight | More load, more energy used |
| Wind and temperature | Headwinds and cold both cut range |
| Tyre pressure | Soft tyres waste energy - keep them pumped |
Key takeaway
The assist level you choose matters more than any other factor. Riding in a lower assist mode is the easiest way to add miles.
The assist level you choose matters more than any other factor. Riding in a lower assist mode is the easiest way to add miles.
Why the advertised range is optimistic
Manufacturer range figures are measured in ideal conditions: a light rider, flat ground, the lowest assist setting and warm weather. That is why the headline number is a best case. For a realistic estimate, take the claimed figure and knock off a chunk for hills, higher assist and British weather.
How to get more miles from every charge
- Use a lower assist level and let your legs do more.
- Keep tyres at the recommended pressure.
- Charge and store the battery indoors at room temperature.
- Carry a charger for longer days - many batteries lift off to top up.
- When buying, size up the battery: you can always use less power, but you cannot add capacity later.
Looking after the battery
A good e-bike battery is a long-life consumable that lasts hundreds of charge cycles. Keep it between about 20% and 80% for daily use, avoid leaving it fully flat for long periods, use only the supplied charger certified to EN 15194, and store it somewhere cool and dry. Look after it and it will hold strong range for years.
The bottom line
Ignore the headline number and think about your real rides. For most people a 500 Wh battery covers the commute and the weekend with room to spare. If you tackle big hills or long distances, size up. Choose the right battery and range stops being a worry.
Shop e-bikes by rangeSee our long-range picks
Frequently asked questions
How far will an e-bike go on one charge?
Realistically 25-60 miles for most UK bikes: about 25-35 on a 375Wh battery, 35-60 on 500Wh, and 60-100+ on 625-750Wh.
What does Wh mean?
Watt-hours - the size of the battery's fuel tank (voltage x amp-hours). More Wh means more potential range.
Why is my range less than advertised?
Manufacturer figures are best-case. Hills, higher assist, cold weather and a loaded bike all reduce it.
Does cold weather cut range?
Yes - winter range can drop 10-20%. Store and charge the battery indoors to help.
By the E Bike Centre Team, Faversham, Kent · Last updated 11 July 2026.