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Real-World E-Bike Range: Why You Won't Get the Claimed Miles

Updated 2026-09-25

"Up to 75 miles" sounds great. But range claims describe a best case: a light rider, flat ground, low assist, mild weather and no stops. Most riders get 40–70% of the claimed figure.

How range really works

A battery's capacity is measured in watt-hours (Wh). The number that matters is how many watt-hours the bike uses per mile:

Range (miles) ≈ usable battery Wh ÷ Wh used per mile

A typical e-bike uses somewhere between about 10 and 30 Wh per mile. A 700Wh battery could give you 60+ miles at the low end, or about 20 at the high end. Where you land depends on five things.

The five things that cut range

  1. Assist level and throttle use. The more the motor does, the faster the battery drains. Riding mostly on throttle can halve your range compared with low assist.
  2. Speed. Air resistance rises steeply with speed. Going from 20 to 28 mph can use roughly 40–50% more energy per mile.
  3. Weight. You, your cargo and the bike all count. A 230 lb rider with groceries uses noticeably more than a 150 lb rider with nothing.
  4. Hills. Climbing takes energy, and you only get a little back on the way down (more with regenerative braking).
  5. Cold. Lithium batteries deliver less capacity below about 40°F — often 20% less or more.

Fat tires, low tire pressure, headwinds and lots of stop-and-go starts all take a bite too.

How to choose a battery size

  1. Work out your longest regular ride (round trip).
  2. Add a 30% buffer for wind, detours and battery aging.
  3. Use the range estimator with your real weight, terrain and riding style, and pick a bike whose low estimate still covers that distance.

If you'll carry kids or cargo, or ride in winter, size up — or choose a bike that supports a second battery.

How we estimate range on EbikeSheet

Every bike on this site gets a "realistic range" figure from the same model, so bikes can be compared fairly even though brands test differently. It's an estimate, not a test result — but it's a lot closer to what most riders see than the number on the box.