Lean Body Mass
Estimate your lean body mass (fat-free) and fat mass, using the Boer formula.
kg
cm
Lean body mass58.1 kg
Fat mass17.0 kg
How it works
Estimate lean body mass, your weight excluding fat, using formulas such as Boer and your body measurements.
Frequently asked questions
What is lean body mass?
It is total body weight minus fat and includes muscle, bone, organs and fluids.
Which formula is used?
Formulas such as Boer use weight, height and sex.
Is it the same as muscle mass?
No, lean mass includes more than muscle.