How to Calculate Lean Body Mass in Men Using James Formula?

How do you calculate lean body mass (lbm) in men using James formula?

Estimating Lean Body Mass (LBM) in Men - James Formula

Lean Body Mass (LBM) is estimated to determine the dosages of some anaesthetic agents. LBM is calculated by subtracting the body fat weight from total body weight. Lean Body Mass Index in men is more when compared to women. This short tutorial will help you on how to calculate the lean body mass index in men using the James Formula.

The James Formula For Men:
LBM = 1.1 x weight(in kg) - 128 x (weight(in kg) / height(in cm))²

Let us consider an example on how to calculate the lean body mass (LBM) in men using the James Formula with simple steps.
Step 1: Given,
Weight = 60kg
Height = 160cm

Step 2: Applying the values in the formula,
LBM = 1.1 x weight(in kg) - 128 x (weight(in kg) / height(in cm))²
LBM = 1.1 x 60 - 128 x (60 / 160)²
LBM = 1.1 x 60 - 128 x 0.140625
LBM = 48

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