Free tool

    Endurance nutrition calculator

    Estimate your carbohydrate, gel, fluid and sodium needs for a run, trail race or ride. These are benchmark ranges to test in training — not prescriptions.

    30 min12 h
    kg

    Used only for the pre-race carb-loading estimate.

    Your benchmarks

    Carbs per hour
    60 – 90 g/h
    Total carbs
    240 – 360 g
    Gels (25 g)
    10 – 15 gels
    Gels (30 g)
    8 – 12 gels
    Fluid per hour
    400 – 600 ml/h
    Sodium per hour
    400 – 700 mg/h

    These ranges are general benchmarks drawn from common sports-science guidance. They don't replace personalised medical or dietary advice — test everything in training and adjust to your own tolerance.

    Want more than a static estimate?

    Fuelnode analyses your actual training, goal and digestive tolerance to generate a complete protocol — recalculated every week, with the matching products delivered in your box.

    Generate my protocol