BMR Calculator
Navigate Personal Training
Estimate Basal Metabolic Rate using the Revised Harris–Benedict equation (Roza & Shizgal, 1984) — the energy your body needs at complete rest, before any movement or exercise.
Your details
Sex
Units
yrs
cm
kg
Basal Metabolic Rate
—kcal / day
This is what your body burns at total rest — organ function, circulation, breathing. Everyday movement and training sit on top of it, which the activity levels below account for.
Estimated daily calories by activity level
BMR × activity multiplier — a rough guide to total daily energy expenditure (TDEE), not a target.