Lean body mass calculator

Lean body mass is your weight minus body fat — muscles, bones, organs and water. Enter your sex, height and weight to estimate it.

Last updated: · By · About & Methodology

Lean body mass calculator

cm

kg

Lean body mass (Boer)

—

Embed this calculator on your website

Copy this code into your page. It's free — please keep the link to Abacurio.

This calculator gives a general estimate for adults and is not medical advice. Talk to a doctor or a registered dietitian before making health decisions.

How is it calculated?

Boer (men): LBM = 0.407 × kg + 0.267 × cm − 19.2

Boer (women): LBM = 0.252 × kg + 0.473 × cm − 48.3

Formulas based only on height and weight are rough for very muscular or very lean people. A body fat measurement gives a more accurate result.

Common questions

Why does lean body mass matter?

It is used to dose some medicines and to set protein targets, and it shows whether weight change comes from fat or muscle.

How can I increase lean body mass?

Strength training with enough protein and sleep.

Choose a language