How the eBike Range Calculator Works
This calculator converts battery capacity into Watt-hours (Wh), applies an estimated consumption (Wh per km or mile), and factors in real-world parameters like rider weight, speed, and terrain. It returns an estimated range, plus useful diagnostics and energy breakdown.
What you can enter
- Battery Capacity: Enter in Ah (Amp-hours) or Wh (Watt-hours). If you enter Ah, provide pack voltage (default 48V) to convert to Wh.
- Average Consumption: The calculator uses Wh/km (or Wh/mile). Typical eBikes are 10–20 Wh/km depending on conditions.
- Rider & Cargo Weight: Extra weight increases energy use. You can test different values to see the sensitivity.
- Speed & Terrain: Higher speeds and steep climbs increase consumption significantly.
Example — realistic estimate
If you have a 48V 10Ah battery (≈480 Wh) and an average consumption of 15 Wh/km, expected range is 480 / 15 = 32 km. Add heavy load or steep climbs and real-world range drops further — this tool lets you test those scenarios quickly.
Why this approach is reliable
Rather than relying on optimistic manufacturer numbers, this calculator uses energy-based math (Wh / Wh-per-km) and includes common factors such as climbing, payload, and realistic consumption numbers — the method used by EV engineers and experienced ebike riders.
Practical Examples & Use Cases
Use this calculator to:
- Decide whether to buy a larger battery for a commuting route.
- Choose the right charger or battery swap strategy for delivery riders.
- Estimate remaining range in cold weather or with extra cargo.
How to Improve Your eBike Range
Small changes have a big effect:
- Reduce payload — every 10 kg roughly increases consumption by ~1–2 Wh/km.
- Lower cruising speed — aerodynamic drag rises quadratically with speed.
- Inflate tires to recommended pressure — lower rolling resistance.
- Use eco mode on the controller — reduces peak current draw and saves energy.