Lean Body Mass Calculator

How to Calculate Lean Body Mass

Lean body mass is calculated by subtracting your fat mass from your total body weight. The formula is: LBM = Body Weight - (Body Weight × Body Fat %)

Understanding Lean Body Mass

Your lean body mass includes all body tissue except fat - muscles, bones, organs, water, and connective tissue. It's a better indicator of metabolic health than total body weight alone.

How to Measure Body Fat

• Skinfold Calipers: Affordable, moderately accurate at home
• Bioelectrical Impedance: Available on many scales, convenient
• DEXA Scan: Most accurate, done at medical facilities
• Bod Pod: Very accurate, uses air displacement
• Hydrostatic Weighing: Accurate, uses water displacement

Factors Affecting Lean Body Mass

• Resistance training and exercise
• Protein intake and overall nutrition
• Age (decreases naturally with age)
• Hormones (testosterone, growth hormone)
• Sleep quality and recovery
• Stress levels