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BMR Calculator

Calculate your Basal Metabolic Rate using the Mifflin-St Jeor equation.

📐What Is BMR and How Is It Calculated?

Mifflin-St Jeor Equation (most accurate)

Male: 10W + 6.25H − 5A + 5 | Female: 10W + 6.25H − 5A − 161
  1. 1BMR = Basal Metabolic Rate — the number of calories your body burns at complete rest just to maintain basic functions (breathing, circulation, cell repair).
  2. 2W = Weight (kg), H = Height (cm), A = Age (years).
  3. 3Men have a slightly higher BMR than women due to greater average muscle mass (+5 vs −161 constant).
  4. 4Multiply BMR by an activity factor to get TDEE — your actual daily calorie burn.

* BMR accounts for roughly 60–75% of total daily calorie expenditure for most people.

Health & Medical DisclaimerThis calculator provides general health information for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Results such as BMI, calorie needs, or body fat percentage are estimates and may not accurately reflect your individual health status. Always consult a qualified healthcare provider before making changes to your diet, exercise routine, or lifestyle based on calculator results. If you have a medical condition, are pregnant, or have special dietary needs, seek personalized guidance from a licensed professional.

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