E-Bike Range by Speed

Speed is one of the most significant factors affecting e-bike range. Learn how different speeds impact your battery consumption and range.

Speed vs Range Relationship

Aerodynamic drag increases with the square of speed, meaning that doubling your speed requires four times the power. This non-linear relationship dramatically affects range.

15-20 km/h: Maximum Range

Optimal speed for maximum range. Low aerodynamic drag allows for 100-150+ km on large batteries.

20-25 km/h: Sweet Spot

Best balance of speed and range. Most e-bikes achieve 80-120 km at this speed.

25-30 km/h: Moderate Range

Good speed but reduced range. Expect 60-90 km depending on battery capacity.

30+ km/h: Reduced Range

High speed significantly reduces range. Expect 40-70 km due to increased aerodynamic drag.

Why Speed Affects Range

The relationship between speed and range is non-linear due to aerodynamic drag. At low speeds, rolling resistance dominates. At higher speeds, aerodynamic drag becomes the primary energy consumer.

Aerodynamic Drag Formula

Drag Force = 0.5 × Air Density × Drag Coefficient × Frontal Area × Speed²

Since drag increases with speed squared, doubling speed requires four times the power, dramatically reducing range.

Example Range by Speed

For a typical 500Wh e-bike on flat terrain:

  • 15 km/h: ~120 km range
  • 20 km/h: ~100 km range
  • 25 km/h: ~80 km range
  • 30 km/h: ~60 km range
  • 35 km/h: ~45 km range

Calculate Range at Your Speed

See how speed affects your specific e-bike's range.

Use Range Calculator