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Medical CalculatorWeight Loss

Body Composition Change

Track changes in your body composition and see how your lean vs fat ratio changes.

Updated 2024-12-153 min readCalzyra Health Team

Calculator

Enter your values below

Health CalculatorEvidence-Based

lbs

Your current body weight

%

Your current body fat percentage

lbs

Your target or recent weight

Formula & Methodology

How this calculator works

Lean Mass = Weight × (1 - Body Fat%)

Calculates lean mass and fat mass, then projects changes based on weight goal while maintaining or improving body composition.

Frequently Asked Questions

Common questions about this calculator

Medical Disclaimer

Sustainable weight loss typically ranges from 0.5-1 kg per week. Rapid weight loss can be harmful. Consult a healthcare provider for personalized guidance.

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References

WHO GuidelinesCDC ResourcesAHA Recommendations