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.
Ready to try Lean Body Mass Calculator?
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Weigh anything from your phone
Point your camera at it and get the answer on the spot, with every result saved to your history.
