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Calculate Your Basale Metabolic Rate (Harris-Benedict)

Last updated: Monday, May 01, 2023
Select a formula below
FAO/WHO/UNU
Harris-Benedict
Roza & Shizgal
Mifflin & St Jeor

The Basal Metabolic Rate (BMR) is an estimation of the amount of a person's energy expenditure while at rest, in a thermal neutral zone ($$21^\circ C$$ or $$69^\circ F$$) and in the absorptive state (normally happens after 12 hours of fasting).

BMR is a more accurate measure of your metabolism at complete rest, which is normally a bit lower than your RMR.

The Harris-Benedict formula used here is the original formula published in 1918 and 1919.

The Harris-Benedict formula for determining the BMR is defined as:
$$BMR$$ $$=$$ $$a$$ $$+$$ $$b$$ $$\times$$ $$weight$$ $$+$$ $$c$$ $$\times$$ $$height$$ $$-$$ $$d$$ $$\times$$ $$age$$
$$BMR$$: The basal metabolic rate
$$weight$$: The weight measured in kilogram
$$height$$: The height measured in centimeter
$$age$$: your age measured in years
The unit for BMR is: $$kilocalorie/day \text{ } (kcal/d)$$
Select your gender and the type of units below
Female (Metric)
Female (Imperial)
Male (Metric)
Male (Imperial)

Female (Metric)

Use this calculator to determine the female basal metabolic rate using the Harris-Benedict formula.
The weight measured in kilogram
$$weight$$
$$kilogram$$
The height measured in centimeter
$$height$$
$$centimeter$$
your age measured in years
$$age$$
$$years$$
Please note, that all calculators provided are for informational and educational purposes ONLY, and should NOT be taken as professional medical/dietary advice.
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