Calc Function

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    Basal Energy Expenditure

    Calculates daily energy expenditure.
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    Pearls/Pitfalls

    Recall that this is simply the basal, i.e., minimum daily needs. Activity will increase this substantially.

    Female
    Male
    lbs
    in
    years
    Harris-Benedict Equation Predictors
    Sedentary (little to no exercise)
    Light exercise (1-3 days per week)
    Moderate exercise (3–5 days per week)
    Heavy exercise (6–7 days per week)
    Very heavy exercise (twice per day, extra heavy workouts)

    Result:

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    Evidence
    Creator Insights

    Advice

    Note: stress, activity, illness, trauma, burns, cancers can increase daily caloric requirement.

    Formula

    Note: The Basal Energy Expenditure must be multiplied by activity and stress factors to calculate total caloric requirement.

    BEE, kcal/day (male) = 66.5 + (13.75 × weight, kg) + (5.003 × height, cm) - (6.775 × age)

    BEE, kcal/day (female) = 655.1 + (9.563 × weight, kg) + (1.850 × height, cm) - (4.676 × age)

    Harris-Benedict adjustment:

    • Sedentary (little to no exercise) = BEE × 1.2
    • Light exercise (1-3 days per week) = BEE × 1.375
    • Moderate exercise (3–5 days per week) = BEE × 1.55
    • Heavy exercise (6–7 days per week) = BEE × 1.725
    • Very heavy exercise (twice per day, extra heavy workouts) = BEE × 1.9
    Dr. J. P. Flatt

    About the Creator

    J. P. Flatt, PhD, is a professor emeritus of Biochemistry and Molecular Pharmacology at the University of Massachusetts. His research focuses on metabolic processes of fat breakdown, obesity and physical activity.

    To view Dr. J. P. Flatt's publications, visit PubMed

    About the Creator
    Dr. J. P. Flatt