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Harris-Benedict Calculator

Use the Harris-Benedict calculator to estimate BMR and TDEE with the revised 1984 Harris-Benedict equation and standard activity multipliers.

Enter age in full years.

kg

Use your current body weight in kilograms.

cm

Use your current height in centimeters.

Choose the option that matches your average week, not your hardest training day.

This calculator uses the revised Harris-Benedict equation from 1984 and standard activity multipliers. It is a planning estimate only, so your real maintenance calories can differ from the result.

This Harris-Benedict calculator provides a general estimate only and is not medical advice. It does not diagnose any condition and cannot replace lab-based metabolic testing, indirect calorimetry, or clinical evaluation. If you have a history of eating disorders, unexplained weight change, pregnancy, or any medical condition that affects metabolism or nutrition, speak with a qualified healthcare professional before using the result to guide calorie or weight-management decisions.

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