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BMR Calculator
Calculate your Basal Metabolic Rate (BMR) and daily calorie needs at different activity levels using the Mifflin-St Jeor equation.
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Fonctionnalités Clés — BMR Calculator
BMR using Mifflin-St Jeor formula
TDEE at 5 activity levels
Metric and imperial units
Male and female formulas
Interactive activity level selector
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Questions Fréquemment Posées — BMR Calculator
What is BMR?
Basal Metabolic Rate (BMR) is the number of calories your body needs to perform basic life-sustaining functions at complete rest — breathing, circulation, cell production, and temperature regulation. It is the minimum caloric requirement for survival.
What is TDEE?
Total Daily Energy Expenditure (TDEE) is your BMR multiplied by an activity factor. It represents total calories burned in a day including exercise and daily movement. Eating at your TDEE maintains your current weight.
Which BMR formula is most accurate?
The Mifflin-St Jeor equation is considered the most accurate for most people, outperforming the older Harris-Benedict formula in studies. It uses weight (kg), height (cm), age, and biological sex. Even so, it is an estimate — individual metabolism varies.