Free Tool
Cycling Fuel Calculator
A starting estimate for carbs and fluid on a longer ride. Use it as a guide, then adjust to how you actually feel.
Per hour
Carbs / hour—
Fluid / hour—
Whole ride
Total carbs—
Total fluid—
Enter a ride duration above to see your fuelling estimate.
How to read this
- Carbs come from drink mix, gels, bars, bananas or real food, whatever sits well with you.
- Rides under about 90 minutes usually need water and little to no extra carbs.
- Start fuelling early rather than waiting until you feel empty.
- This is a general guide, not medical or nutrition advice. Adjust to your own experience.