Lean Body Mass Explained
Executive Summary
Learn the core logic of Lean Body Mass calculator.
Key Takeaways
- Core Formula: Computes yield based on starting allocation.
- Precedence: Resolve principal factors.
- Efficiency: Provides instant analysis.
Formula
Boer / James / Hume Physiological Models
Lean Body Mass Formula
Variable Glossary
| Symbol | Meaning & Description |
|---|---|
| LBM | Lean Body Mass (kg) |
| W | Weight (kg) |
| H | Height (cm) |
Step-by-Step Worked Example
1. Mapped Variables
Weight
70 kg
Height
175 cm
Gender
MALE
2. Equation Substitution
Equation with standard inputs
LBM estimated for 70 kg and 175 cm
3. Calculation Steps
Step 1: Check inputs
Apply gender-specific coefficients for Boer, James, and Hume formulas.
Step 2: Calculate and compare LBM
LBM = 56.0 kg
Final Resolved Lean Body Mass (LBM)56.0 kg
Lean Body Mass vs. Fat Mass by Total Weight (Male, Height 175cm, 20% BF)
Lean Mass (kg)
Fat Mass (kg)
Step-by-Step Worked Example
1. Multiply principal by interest.
2. Divide by 100.
Frequently Asked Questions
Live Simulation
Lean Body Mass Calculator Sandbox
Tweak variables below to see the formula calculate instantly.
70
175
Lean Body Mass (LBM)
56.0 kg
Equation Used
Boer
Lean Mass Percentage
80.0%
Fat Mass
14.0 kg
Body Fat Percentage
20.0%
How This Result Is Calculated (Step-by-Step)
Step 1: Check inputs
Apply gender-specific coefficients for Boer, James, and Hume formulas.
Step 2: Calculate and compare LBM
LBM = 56.0 kg
Interactive Tool
Lean Body Mass Calculator
Calculate Lean Body Mass (LBM), fat mass, and body composition ratios using Boer, James, and Hume formulas.