Hume Formula Lean Mass Calculator
The 1966 Hume LBM equation — derived from tritium-dilution body-water studies, still cited for drug dosing.
Hume validated his regression against tritiated-water dilution — a genuinely independent measurement of lean tissue, which is why the equation has survived sixty years. It reads a little lower than Boer for most male inputs and a little higher for many female ones.
Formula
For general information only — not medical advice, a diagnosis or a treatment plan. Consult a qualified healthcare professional before making health, diet, medication or exercise decisions.
The 1966 Hume LBM equation — derived from tritium-dilution body-water studies, still cited for drug dosing. The Hume Formula Lean Mass Calculator is a free, private hume formula tool — every result computes instantly in your browser with no sign-up and no data upload.
About Hume Formula Lean Mass Calculator
Hume validated his regression against tritiated-water dilution — a genuinely independent measurement of lean tissue, which is why the equation has survived sixty years. It applies M: 0.32810W + 0.33929H − 29.5336 · F: 0.29569W + 0.41813H − 43.2933. Use the Hume Formula Lean Mass Calculator to get an instant, clearly-explained result with the working shown step by step — free, private and with the source method cited.
How to use Hume Formula Lean Mass Calculator
- 1Enter your details in the Hume Formula Lean Mass Calculator input fields above.
- 2The result updates instantly with the working and reference bands shown.
- 3Adjust any value to explore how it changes the outcome — it's free and unlimited.
Why use Hume Formula Lean Mass Calculator?
- ✓Instant hume formula result that recomputes as you type — no waiting, no page reloads
- ✓100% client-side: your health data never leaves your browser
- ✓Shows the actual formula and your numbers substituted in, so you can see exactly how the result is reached
- ✓Based on published, citable sources (Hume R, J Clin Pathol 1966;19:389-91)
- ✓Free forever with no sign-up, account or app install
Frequently asked questions
How does the Hume Formula Lean Mass Calculator work?+
Hume validated his regression against tritiated-water dilution — a genuinely independent measurement of lean tissue, which is why the equation has survived sixty years. The calculation uses the formula: M: 0.32810W + 0.33929H − 29.5336 · F: 0.29569W + 0.41813H − 43.2933. Everything runs instantly in your browser as you type — your inputs are never uploaded.
Is the Hume Formula Lean Mass Calculator accurate, and what is it based on?+
The method is traceable to authoritative sources: Hume R, J Clin Pathol 1966;19:389-91. Results are estimates — individual variation always applies, so treat the output as a well-grounded starting point.
Is the Hume Formula Lean Mass Calculator free and private?+
Yes. It's completely free with no sign-up, and all computation happens locally in your browser, so none of your health data ever leaves your device.
Can I use this for medical decisions?+
This tool is for general information only and is not medical advice. Always consult a qualified healthcare professional before making health decisions.
What can I use the Hume Formula Lean Mass Calculator for?+
It's commonly used for hume formula, hume lean body mass, lbm 1966. The 1966 Hume LBM equation — derived from tritium-dilution body-water studies, still cited for drug dosing.
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