Calorie Burn Calculator
Estimate how many calories you burn swimming, cycling, and running — and how much carbohydrate that means replacing to fuel and recover well.
Your session
Single discipline or a full swim-bike-run session.
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How this calculator works
Calories are estimated as MET × body weight (kg) × hours, using MET values for swimming, cycling, and running from the Compendium of Physical Activities. Carbohydrate to replace assumes roughly half of endurance energy comes from carbohydrate at 4 kcal per gram.
Assumptions
- • Steady effort at the selected intensity
- • Standard MET values for each discipline
Limitations
- • MET estimates ignore individual efficiency and terrain
- • Hot conditions and wind change real expenditure
Who this is for
- • Triathletes estimating training and race energy cost
- • Athletes planning fuelling and recovery nutrition
Who this is not for
- • Precise clinical or weight-loss calorie prescription
- • Replacing lab-measured metabolic testing
References
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Calorie Burn Calculator FAQ
Scientific References
Source of the MET values used for swimming, cycling, and running