Lean Body Mass Calculator
Calculate your lean body mass (LBM) to understand your body composition better and track your fitness progress.
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About Lean Body Mass
Lean Body Mass (LBM) refers to the total weight of your body minus all the weight due to your fat mass. It includes muscles, bones, organs, and water. A higher LBM generally indicates better metabolic health and physical fitness.
Your Results
Lean Body Mass
60 kg
Your muscle & organ weight
Fat Mass
15 kg
Your body fat weight
Body Composition
Body Composition Analysis
LBM Comparison by Formula
Enter your details to calculate your lean body mass
Understanding Lean Body Mass
Metabolic Health
LBM is a key determinant of your basal metabolic rate (BMR). Higher LBM means you burn more calories at rest.
Strength & Function
LBM correlates with physical strength, mobility, and overall functional capacity as you age.
Fitness Tracking
Monitoring LBM helps distinguish between weight loss from fat versus muscle during dieting.
How to Increase Lean Body Mass
Resistance Training
Lift weights 3-4 times per week, focusing on compound movements like squats, deadlifts, and bench press.
Protein Intake
Consume 1.6-2.2g of protein per kg of body weight daily to support muscle repair and growth.
Adequate Recovery
Get 7-9 hours of quality sleep and allow 48 hours between working the same muscle groups.
Calorie Surplus
To build muscle, consume 300-500 calories above maintenance with nutrient-dense foods.