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Find your BMR and daily calorie needs with three formulas and goal targets.
Your TDEE (maintenance calories)
2,633 kcal/day
Mifflin-St Jeor BMR × 1.55 activity factor
BMR — Mifflin-St Jeor
1,699
kcal/day · most accurate for most people
BMR — Harris-Benedict
1,763
kcal/day · revised 1984 equation
BMR — Katch-McArdle
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enter body fat % to unlock
Calorie targets by goal
These are estimates based on population formulas — individual metabolism varies. Not medical advice; consult a professional before major diet changes. Computed entirely in your browser.
Calculate your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) using three proven formulas: Mifflin-St Jeor, revised Harris-Benedict, and Katch-McArdle (when body fat % is known). Supports metric and imperial units, five activity levels, and shows calorie targets for cutting, maintaining and bulking. Runs entirely in your browser.
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