Calculator LBM

Calculate your Lean Body Mass (LBM) using weight, height, age, and body fat percentage with accurate formulas.

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About This Tool

This Lean Body Mass (LBM) calculator helps you determine the weight of everything in your body except fat, including muscles, bones, organs, and water. It uses the scientifically validated Boer formula, which accounts for gender, weight, height, and age to provide accurate estimates. By optionally including body fat percentage, you can get a more precise calculation. The tool supports both metric and imperial measurement systems, with a clean, user-friendly interface for quick results.

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How to Use

Select your gender (male or female).
Choose your measurement system (metric or imperial).
Enter your weight, height, age, and optionally body fat percentage.
Click 'Calculate LBM' to see your Lean Body Mass result.
View the detailed output with explanations.

Frequently Asked Questions

Find Quick Answers

What is Lean Body Mass (LBM)?

Lean Body Mass is the total weight of your body minus all fat mass. It includes muscles, bones, organs, and water, and is a key indicator of overall health and fitness.

Which formula does this calculator use?

It uses the Boer formula, a scientifically validated method that considers gender, weight, height, and age for accurate LBM estimation.

Do I need to enter body fat percentage?

No, it's optional. The calculator works with or without it, but including it can improve accuracy, especially if you have precise measurements.

Can I switch between metric and imperial units?

Yes, the tool supports both systems. Toggle between them, and the input fields will update automatically with appropriate units (kg/cm or lbs/in).

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