Lean Body Mass Calculator

Use this free Lean Body Mass Calculator to check your lean body mass in seconds — accurate, private, and easy to use.

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How the Lean Body Mass Calculator Is Calculated

Lean body mass — your total body weight minus estimated fat mass — is calculated with the Boer formula, a sex-specific equation based on weight and height: 0.407 × weight(kg) + 0.267 × height(cm) − 19.2 for men, or 0.252 × weight(kg) + 0.473 × height(cm) − 48.3 for women.

About the Lean Body Mass Calculator

Use this free Lean Body Mass Calculator to check your lean body mass in seconds — accurate, private, and easy to use.