Lean Body Mass Calculator
Lean mass from a body-fat percent you type, or Boer / James / Hume estimates from height, weight, and sex.
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How to use Lean Body Mass Calculator
- Choose method first so the fields that apply to that job appear.
- Enter height (cm), feet, inches. Leave a field blank only when the page says the value is missing.
- Read the result rows under the form. Errors appear in the status line. Nothing is uploaded.
- Treat the figures as formula output, not a diagnosis, diet, pregnancy chart, or care plan.
Lean Body Mass Calculator
Percent method
| Computes | Lean mass from a body-fat percent you type, or Boer / James / Hume estimates from height, weight, and sex. |
|---|---|
| Includes | Percent method |
| Includes | Boer |
| Includes | James |
| Engine | navyFat |
| Upload | None |
| Advice | Informational only |
What Lean Body Mass Calculator is
From percent: lean = weight × (1 − bf/100). Boer, James, and Hume are published adult regressions; they can disagree with a tape or DEXA.
Informational only. Not a diagnosis, diet plan, pregnancy chart, or medical advice.
The formula runs in this tab. CZNull does not receive the numbers.
How this page computes
Navy tape percent is Navy body fat. Ideal-weight formulas are separate.
Entities and related jobs
Lean mass from a body-fat percent you type, or Boer / James / Hume estimates from height, weight, and sex. Named features: Percent method, Boer, James, Hume.
See also Navy Body Fat Calculator, BMI Calculator, Ideal Weight Calculator, BMR Calculator, TDEE Calculator.
Use cases
Splitting scale weight into lean and fat using a percent you already have, or a regression estimate. Not a clinical composition study.
Not medical advice
Invalid input appears in the status line. IEEE floating point applies unless a row says otherwise. CZNull does not receive the numbers.