The Boer formula is considered one of the most accurate methods for estimating Lean Body Mass (LBM) using just weight and height. Developed in 1984 by P. Boer, this formula has been validated against more complex methods like DEXA scans and underwater weighing.
Unlike BMI, which cannot distinguish between muscle and fat, Lean Body Mass provides a accurate measure of your metabolically active tissue. This is critical for calculating Basal Metabolic Rate (BMR), protein requirements, and drug dosing.
While James (1976) and Hume (1966) also created LBM equations, the Boer formula tends to be more accurate across a wider range of body types. It performs particularly well for individuals in the normal to moderately overweight categories.
Calculate your Lean Body Mass using the clinically validated Boer formula. Instant results for body recomposition.
Lean Body Mass
61.42kg
135.41lbs
Body Fat Mass
18.58kg
40.96 lbs
Body Fat %
23.2%
Results are estimates based on standard models. Please verify critical data before taking action. Terms of Use
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