Race Fueling Calculator

Calculate how many energy gels you need for your race based on your target finish time and carb tolerance. Use this to plan your fueling strategy and avoid hitting the wall.


Race Fueling Calculator

Hours
Minutes
Sensitive Stomach Pro / Experienced

Total Carbs Needed: 200g
Based on 25g carb gels, you should pack:
8 Gels

Your Strategy:

Take one gel every 30 minutes during the race to maintain steady energy levels.

Fueling Tips

📍 When to Start

For races over 90 minutes, begin fueling at 45 minutes in.


💧 Hydration

Consume 400-800ml of fluid per hour, adjusting for sweat rate and temperature.


🧪 Test First

Never try new gels or nutrition on race day. Practice your strategy in training.


⚡ General Targets

  • Sensitive stomach: 30-45g carbs/hour
  • Moderate: 45-60g carbs/hour
  • Experienced: 60-90g carbs/hour