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Lean Body Mass Hume Formula Calculator
Compute lean body mass using the Hume-Weyer regression model based on total body water volume dynamics.
About the Hume Lean Body Mass Equation
Developed alongside radioisotope dilution studies, the 1966 Hume formula correlates body dimensions directly with desorbed total body water volume.
Formulas
- Men: LBM = (0.32810 × Weight) + (0.33929 × Height) - 29.5336
- Women: LBM = (0.29569 × Weight) + (0.41813 × Height) - 43.2933
Frequently Asked Questions
How does Hume relate to total body water?
Lean tissue consists of approximately 73% water by weight, whereas adipose tissue contains minimal water (~10%).
How does Hume compare to Boer?
Hume and Boer generally produce results within 1 to 2 kg of each other across standard adult BMI ranges (20 to 30 kg/m²).
Is Hume useful for estimating basal metabolic rate?
Yes. Incorporating Hume LBM into the Katch-McArdle formula provides an accurate estimate of resting daily calorie burn.
Does Hume require age as an input?
No. Stature and mass serve as the primary anthropometric inputs for the regression.
How to use
Calculate in three steps
- 1Enter your valuesUse the fields above and check the units shown beside each input.
- 2Run the calculationSelect Calculate to refresh the result with your latest values.
- 3Review or shareCompare the result, reset the form, print it, or share this page.
Inputs
What you need
Biological SexValue
Height (cm)cm
Weight (kg)kg