Calculate Your Lean Body Mass Index (LBMI): A Simple Guide

Your lean body mass is the total weight of your body sans the fat. This includes your bones, organs, and muscles. Calculating your lean muscle mass is a great way to estimate how much muscle you are gaining. Muscle burns calories, and the more muscle you have, the more calories you are capable of burning.

Things You'll Need

• Scale
• Calculator

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Instructions

• 1

  Weigh yourself and make note of your body weight.

• 2

  Obtain your body fat percentage by using an online calculator such as BMI-Calculator.com. You will need your weight, your waist in inches, and women will need to add their wrist, hips and forearm measurements in inches.

• 3

  Multiply your body weight by your fat percentage (in decimal form) to get your body fat in pounds.

• 4

  Subtract your body fat in pounds from your total body weight. This is your lean body mass.