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Lean Body Mass Calculator

Calculate your lean body mass accurately with our simple calculator.

Lean Body Mass Calculator
Logic Verified
Configure parametersUpdated: Feb 2026
0 - 500
kg
0 - 100
%

Lean Body Mass (kg)

0
Expert Analysis & Methodology

Lean body mass refers to the weight of everything in your body except fat. It includes muscles, bones, organs, and fluids. Understanding your lean body mass can help you assess your fitness level and body composition for optimal health. This calculator allows you to easily compute your lean body mass based on your input measurements.

To use this calculator, simply enter your weight in kilograms and your body fat percentage. The calculator will process these inputs to give you a precise estimate of your lean body mass. Make sure your body fat percentage is accurate for the best results.

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Disclaimer

This calculator is provided for educational and informational purposes only. It does not constitute professional legal, financial, medical, or engineering advice. While we strive for accuracy, results are estimates based on the inputs provided and should not be relied upon for making significant decisions. Please consult a qualified professional (lawyer, accountant, doctor, etc.) to verify your specific situation. CalculateThis.ai disclaims any liability for damages resulting from the use of this tool.