✦ Medical & Clinical Reference

Lean Body Mass Calculator

Estimate lean body mass using the Boer formula.

Medical & Clinical ReferenceFree calculatorClear units & parameters

Calculator

Enter the values below. Every quantity identifies its unit or meaning.
cm
kg

How to use this calculator

What to enter

Enter or select the following as requested: Height; Weight; Sex. Follow the units, valid ranges, examples, and options displayed beside each field.

What the result means

The lean-body-mass estimate uses the height, weight, and sex-related assumptions required by the selected equation. Different formulas can produce different estimates, and the result is not a direct measurement of body composition.

When to use it

Use this as a general educational estimate only. It is not a diagnosis or treatment target; discuss clinical or nutrition decisions with a qualified health professional.