What is lean body mass?

Lean body mass is the weight of your body excluding fat. It includes muscle, bone, organs, and water.

How is lean body mass calculated?

Lean body mass is estimated using formulas such as Boer, James, and Hume based on height, weight, and gender.

Lean mass percentage shows how much of your body weight is lean tissue instead of fat.

Yes. Body fat percentage is estimated as 100 minus lean mass percentage.

Calculate your lean body mass (LBM), lean mass percentage, and estimated body fat percentage using metric or US units.

Gender

Unit System

Height (cm)

Weight (kg)