Lean Body Mass Calculator
Calculate your Lean Body Mass (LBM) using your height, weight, and gender. Estimate the weight of your muscles, bones, organs, and body water excluding body fat.
Use our free online lean body mass calculator to get accurate results instantly. The calculator is designed to be fast, easy to use, mobile-friendly, and suitable for everyday calculations.
Lean Body Mass Calculator
Calculate your lean body mass (LBM), fat free body weight, and estimated body fat mass using your height, weight, and gender.
How the Lean Body Mass Calculator Works
Follow these simple steps to get accurate results instantly.
Enter Your Gender
Select your gender for accurate lean body mass estimation.
Enter Height
Provide your height in centimeters.
Enter Weight
Provide your body weight in kilograms.
View Results
See your estimated lean body mass and fat-free body weight.
Lean Body Mass Formula
Male: (0.407 × Weight) + (0.267 × Height) − 19.2 | Female: (0.252 × Weight) + (0.473 × Height) − 48.3
The Lean Body Mass Calculator uses the Boer Formula to estimate fat-free body mass. Lean body mass includes muscles, bones, organs, and body water while excluding body fat.
Example Calculation
Input: Male, Height: 175 cm, Weight: 75 kg
Output: Lean Body Mass ≈ 61.8 kg
Common Uses
- • Body Composition Analysis
- • Weight Loss Tracking
- • Muscle Gain Planning
- • Fitness Assessment
- • Bodybuilding
- • Sports Nutrition
- • Health Monitoring
- • Strength Training
- • Fat Loss Programs
- • Performance Optimization
Frequently Asked Questions
Find answers to common questions about this calculator.
What is Lean Body Mass?
Lean Body Mass is the weight of everything in your body except body fat, including muscles, bones, organs, and water.
Why is Lean Body Mass important?
Lean Body Mass helps evaluate body composition, monitor fitness progress, and plan nutrition or training programs.
Is Lean Body Mass the same as muscle mass?
No. Lean Body Mass includes muscle mass but also includes bones, organs, and body water.
Can Lean Body Mass increase?
Yes. Resistance training, proper nutrition, and healthy lifestyle habits can increase lean body mass over time.
How accurate is the Lean Body Mass Calculator?
It provides an estimate based on proven formulas and should be used as a guideline rather than a medical measurement.
Is this Lean Body Mass Calculator free?
Yes. You can calculate your lean body mass online unlimited times completely free.
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