Scale to GramsUnderstanding Lean Body Mass
LBM is the most meaningful fitness metric. Each kg of muscle burns ~13 calories at rest vs ~4.5 for fat. More lean mass = higher metabolism = easier weight maintenance.
Lean Body Mass Calculator
Calculate your fat-free mass (muscle, bone, water)
Lean Body Mass (LBM) is everything except fat — muscles, bones, organs, water. Knowing your LBM sets accurate protein targets, tracks muscle gain, and reveals what your scale number really means.
Don't know your body fat %? Try our body fat calculator.
How It Works
1
Upload Your Photo
Take or upload a photo for AI-powered body analysis.
2
AI Analyzes Your Photo
Our AI estimates body composition using visual analysis technology.
3
Get Your Results
Receive calculated results with detailed breakdown and recommendations.
Get the Mobile App
All tools available on your phone. Download free for iOS and Android.
