The Lean Body Mass (LBM) & Body Fat Calculator is a tool that helps you estimate your lean body mass (the weight of everything in your body except fat) and body fat percentage using three scientifically recognized formulas: Boer, James, and Hume.
📊 What is Lean Body Mass (LBM)?
Lean Body Mass refers to the total weight of your body excluding fat. It includes muscles, bones, organs, and other non-fat tissues. Knowing your LBM is useful for:
* Fitness and bodybuilding goals
* Monitoring health and nutrition
* Calculating ideal body composition
📏 Formulas Used
Boer Formula –
A reliable method often used for general populations.
James Formula –
Typically used for medical assessments.
Hume Formula –
Another scientific method that estimates LBM.
🛠️ How to Use the Calculator
Select Gender:
Choose either Male or Female using the radio buttons.
Enter Height:
* Input your height in centimeters or select feet/inches.
* If you choose feet/inches, an additional input field will appear to enter inches.
Enter Weight:
* Input your weight in either kilograms (kg) or pounds (lbs).
* The calculator will automatically convert measurements if needed.