Activity + weight + duration → estimated calories, using standard MET values.
—calories burned
How it works
Calories burned = MET value × weight in kg × duration in hours. MET values are standard population-average figures for each activity's intensity, so the result scales directly with how heavy you are and how long you do the activity for.
FAQ
What is a MET value?
MET stands for Metabolic Equivalent of Task — it's a standard ratio of how much energy an activity uses compared to sitting still. 1 MET is roughly the energy used at rest, and a MET of 8 means an activity uses about 8 times that much.
How accurate is this?
It's a population-average estimate, not a measurement of you specifically — actual calorie burn varies with fitness level, effort, terrain, and individual metabolism, so treat the result as a ballpark rather than an exact figure.
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