💪 Lean Body Mass Calculator

Lean body mass (LBM) is your total body weight minus your body fat weight. It includes muscles, bones, organs, blood, skin, and everything else that isn't fat. LBM typically ranges from 60-90% of total body weight.

LBM calculators provide estimates based on statistical formulas. The Boer formula is considered most accurate, but individual variations in bone density and muscle mass can affect precision. For exact measurements, consider DEXA scans or bioelectrical impedance analysis.

Lean body mass includes essential fat in organs, while fat-free mass excludes all fat. The difference is approximately 2-3% in men and 5-12% in women. For practical purposes, they're often used interchangeably.

Men typically have higher muscle mass and bone density, while women naturally have more essential body fat. Different formulas account for these biological differences to provide more accurate estimates.

For men, 75-90% is considered healthy, with 85%+ being excellent. For women, 68-85% is healthy, with 80%+ being excellent. These ranges vary with age, genetics, and fitness level.

Yes, through resistance training, adequate protein intake, and proper recovery. Building muscle increases LBM while maintaining or reducing body fat improves your LBM percentage.

Monthly calculations can help track progress during fitness programs. However, focus on trends rather than daily fluctuations, as factors like hydration can affect measurements.