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# Calculate Your Lean Body Mass (Boer)

Last updated: Monday, May 01, 2023
Select a formula below
Boer Formula
Hume Formula
James Formula

The Lean Body Mass (LBM) is the total weight of your body without the body fat.

This calculator is based on the Boer formula.

The Boer formula for determining the lean body mass is defined as:
$$LBM$$ $$=$$ $$a$$ $$\times$$ $$weight$$ $$+$$ $$b$$ $$\times$$ $$height$$ $$-$$ $$c$$
$$LBM$$: The Lean Body Mass
$$height$$: $$= height_{feet} + height_{inch}$$
$$weight$$: the weight measured in pound(lbs)
$$height_{feet}$$: The first part of the height measured in feet. For example $${\color{rgb(230,179,255)} 5}$$ in $${\color{rgb(230,179,255)} 5}$$'10''
$$height_{inch}$$: The second part of the height measured in inch. For example $${\color{rgb(230,179,255)} 10}$$ in 5'$${\color{rgb(230,179,255)} 10}$$''
The unit for LBM is: $$kilogram \text{ } (kg)$$
Select your gender and the type of units below
Female (Metric)
Female (Imperial)
Male (Metric)
Male (Imperial)

## Male (Imperial)

Use this calculator to determine the Lean Body Mass for an adult male using the Boer formula.
the weight measured in pound(lbs)
$$weight$$
$$pound$$
The first part of the height measured in feet. For example $${\color{rgb(230,179,255)} 5}$$ in $${\color{rgb(230,179,255)} 5}$$'10''
$$height_{feet}$$
$$feet$$
The second part of the height measured in inch. For example $${\color{rgb(230,179,255)} 10}$$ in 5'$${\color{rgb(230,179,255)} 10}$$''
$$height_{inch}$$
$$inch$$
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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