Endocrinology

Harris-Benedict BMR & Caloric Needs

Calculates Basal Energy Expenditure (BEE) and daily caloric requirements.

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Parameters

Harris-Benedict BMR & Caloric Needs Result

Formula

Men: BMR = 88.362 + (13.397 × Weight in kg) + (4.799 × Height in cm) - (5.677 × Age)
Women: BMR = 447.593 + (9.247 × Weight in kg) + (3.098 × Height in cm) - (4.330 × Age)
TDEE = BMR × Activity Multiplier

Clinical Pearls

The foundational equation used by clinical dietitians and critical care teams to initiate tube feeding regimens, total parenteral nutrition (TPN), and dietary counseling.

Limitations

May slightly overestimate energy expenditure in individuals with high body fat percentage and underestimate in highly muscular athletes.