How to Use the Lean Body Mass (LBM) Calculator
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1
Select biological sex and measurement units (Metric or Imperial).
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2
Enter total body weight and height.
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3
The calculator computes your Lean Body Mass using the Boer, James, and Hume clinical formulas.
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4
Review your estimated body fat percentage and fat-free tissue weight.
Practical Example & Use Case
Common Real-World Scenario
Determining that a 180 lb, 5 ft 10 in male has approximately 144 lbs of lean body mass and 36 lbs of fat mass.
Technical Notes & Limitations
Browser Engine Architecture
Estimates based on population anthropometric statistical models.
Frequently Asked Questions
What is Lean Body Mass (LBM)?
LBM is total body weight minus adipose fat tissue, representing the combined weight of muscle, bones, organs, and water.