Cycling••1 min read
How Many Calories Do You Burn Biking 100 km?
Find out how many calories 100 km of cycling burns. Century ride calorie estimates.
Cycling 100 km burns approximately 1,870 to 3,110 calories depending on your body weight and speed. This is the classic century ride challenge.
Quick Answer
| Speed | Calories (70 kg rider) |
|---|---|
| 15 km/h | 1,867 cal |
| 20 km/h | 2,450 cal |
| 25 km/h | 3,111 cal |
Calories by Body Weight
| Body Weight | Light | Moderate | Vigorous |
|---|---|---|---|
| 60 kg | 1,600 cal | 2,100 cal | 2,667 cal |
| 70 kg | 1,867 cal | 2,450 cal | 3,111 cal |
| 80 kg | 2,133 cal | 2,800 cal | 3,556 cal |
| 90 kg | 2,400 cal | 3,150 cal | 4,000 cal |
Fueling Your Century
At this distance, proper nutrition is essential:
- Pre-ride: High-carb meal 2-3 hours before
- During: 60-90g carbs per hour
- Hydration: 500-750ml per hour with electrolytes
- Post-ride: Protein and carbs within 30 minutes
Calculate Your Exact Burn
Use our 100 km Cycling Calculator →