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Lean Body Mass Calculator

Estimate your lean body mass: your total weight minus fat.

How it works Report a problem

Lean Body Mass

Measure your actual muscle weight

Male
Female

About the Lean Body Mass Calculator

Estimate your lean body mass: your total weight minus fat.

How to use the Lean Body Mass Calculator

  1. Enter your Height (cm) and Weight (kg) and choose your gender if asked.
  2. Press Solve Mass.

Tips

  • Lean mass includes muscle, bone, organs and water.
  • Formulas give estimates. Body scans give better numbers.

Frequently asked questions

Why does lean body mass matter?
It helps set protein targets and track whether weight changes come from fat or muscle.