E-Bike Range
Estimate e-bike range from battery capacity, assist level, terrain, temperature. 680Wh: 48+ mi Eco, 34 mi Tour, 26 mi Turbo. Cost per charge, CO2 saved vs car.
Range = (Battery Wh × 0.9) / Wh per km
680Wh: Eco 48+ mi, Tour 34 mi, Turbo 26 mi. Factors: assist, terrain, weight, temp.
Preset Scenarios
Range by Assist Level
⚠️For educational and informational purposes only. Verify with a qualified professional.
🎯 When to Use This Calculator
Use when buying an e-bike to compare range claims, or when planning a long ride or tour. Essential for commuters estimating daily range. Also useful for understanding how assist level, terrain, and temperature affect range—and how much CO2 you save vs driving.
Worked example
500 Wh, Eco (10 Wh/km), flat, 75 kg, 20°C, slick. Wh/km = 10 × 1 × 1 × 1 / 1 = 10. Range = 500 × 0.9 / 10 = 45 km (~28 mi). Same bike Turbo: 500×0.9/32 ≈ 14 km.
E-bike range is determined by battery Wh. Range = (Battery Wh × 0.9 usable) / Wh per km. Three scenarios for 680Wh: efficient (Eco, flat) 48+ mi, average (Tour, hilly) 34 mi, extreme (Turbo, mountainous) 26 mi. Global e-bike market projected $40B by 2025. Average battery 400–750 Wh. E-bikes reduce CO2 by ~150 g/km vs cars.
📋 Key Takeaways
- • Global e-bike market: $40B by 2025
- • Average e-bike battery: 400–750 Wh
- • E-bikes reduce CO2 by ~150 g/km vs cars
- • 680Wh: Eco flat 48+ mi, Tour hilly 34 mi, Turbo mountain 26 mi
💡 Did You Know?
📖 How E-Bike Range Works
Battery capacity (Wh) divided by energy consumption (Wh/km) gives range. Consumption depends on assist level, rider weight, terrain, temperature, and tire type. Most batteries use ~90% of stated capacity in real use.
Step 1: Wh per km
Base Wh/km by assist: Eco 10, Tour 15, Sport 22, Turbo 32. Multiply by terrain (flat 1×, hilly 1.4×, mountainous 1.8×), tire type, weight factor, divide by temp factor.
Step 2: Range
Range = (Battery Wh × 0.9) / Wh per km. 0.9 accounts for usable capacity and efficiency losses.
Step 3: Plan Your Ride
Add 20% buffer for headwind, detours, or cold. For long tours, plan charging stops. Eco mode can double range vs Turbo.
🎯 Expert Tips
💡 Eco for Max Range
Eco mode can double range vs Turbo. Use Eco on flats; save Turbo for climbs.
💡 Cold Weather
Keep battery warm before ride. Store indoors. Expect 15–25% less range in winter.
💡 Terrain Matters
Mountainous terrain can cut range 40–50% vs flat. Plan charging for long hilly rides.
💡 Tire Choice
Slicks save 10–15% vs knobby. Maintain tire pressure for best efficiency.
⚖️ E-Bike Range vs Other Methods
| Feature | This Calculator | Manufacturer | Rule of Thumb |
|---|---|---|---|
| Assist level adjustment | ✅ | ⚠️ | ❌ |
| Terrain factor | ✅ | ⚠️ | ❌ |
| Temperature factor | ✅ | ❌ | ❌ |
| CO2 savings | ✅ | ❌ | ❌ |
| Cost per charge | ✅ | ❌ | ❌ |
| Weight factor | ✅ | ❌ | ❌ |
| Tire type factor | ✅ | ❌ | ❌ |
📊 By the Numbers
📚 Official Sources
⚠️ Common E-Bike Range Mistakes
- Trusting manufacturer range—often tested at Eco, 70 kg, flat; real-world is 20–30% less
- Ignoring cold—batteries lose 15–25% capacity below 5°C; keep battery warm
- Riding Turbo on flats—Eco or Tour saves 50%+ energy; use Turbo for climbs only
- Underinflated tires—costs 5–10% range; check pressure regularly
- Not planning charging—for tours, know where chargers are; bring adapter if needed
📐 Range Formula
Wh/km = base × weight_factor × terrain × tire / temp_factor
Range (km) = Battery Wh × 0.9 / Wh per km
Eco ~10, Tour ~15, Sport ~22, Turbo ~32 Wh/km base. Terrain: flat 1×, hilly 1.4×, mountainous 1.8×
Temp factor: <0°C 0.65, <5°C 0.75, else 1. Weight: +1% per 5 kg over 75 kg.
Pro tip: Add 20% buffer for real-world rides. Manufacturer range is often best-case. Eco mode can double range vs Turbo—use it on flats.
E-bike range depends heavily on how you ride. Eco mode on flat terrain can deliver 48+ miles from 680 Wh; Turbo in the mountains may drop to 26 miles. The global e-bike market is projected at $40B by 2025, and understanding range helps you choose the right bike and plan rides confidently.
⚠️ Disclaimer: Range estimates vary with riding style, conditions, and battery health. Actual range may be 20–30% different. Use for planning only. Verify with manufacturer specs for your specific e-bike.