Harris-Benedict REE Calculator

Calculate resting energy expenditure (REE) using Harris-Benedict equations. Male: 88.4 + 13.4xW + 4.8xH - 5.68xA. Female: 447.6 + 9.25xW + 3.1xH - 4.33xA. Multiply by activity factor for TDEE.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Calculate resting energy expenditure (REE) using Harris-Benedict equations. Male: 88.4 + 13.4xW + 4.8xH - 5.68xA. Female: 447.6 + 9.25xW + 3.1xH - 4.33xA. Multiply by activity factor for TDEE

Each component has a specific meaning:

  • Harris-Benedict equations — The harris-benedict equations recorded for the scenario being assessed.

Note: Interpret the harris-benedict ree result against the thresholds and context described above.

How to Use

Enter the Harris-Benedict equations for the scenario you are assessing. Calculate resting energy expenditure (REE) using Harris-Benedict equations. Male: 88.4 + 13.4xW + 4.8xH - 5.68xA. Female: 447.6 + 9.25xW + 3.1xH - 4.33xA. Multiply by activity factor for TDEE. Use the harris-benedict ree result to inform your calculation.

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