Nutrition Calculator

The Macgrif Nutrition Calculator is designed to give you a practical understanding of two key things:

1. How many carbohydrates you’re likely to consume for different types of activities.
Whether you're cruising on an easy run, tackling a long ride, or pushing hard on the trails, the calculator helps you estimate your hourly carb intake based on real-world training intensity and duration.

2. How many nutrition products you can expect to use per session on a per-product basis.
Instead of guessing how many gels, bars, chews, or drink mixes you might need, you’ll get a clearer picture tailored to your effort level.

Only products that contain more than 10g of carbohydrates per serving are included. Because of this, you won’t see hydration-only items such as electrolytes or isotonic drinks represented here. This tool is focused on fueling, not fluid replacement.

What influences your carbohydrate requirements per hour?

Your ideal fueling range depends on several factors:

• Body weight

• Exercise intensity

• Duration of your activity

• Terrain and environmental demands

• Your personal tolerance and experience with fueling