Calculate your body fat and muscle mass instantly online

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Discover your body composition

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Your Body Fat

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Your Muscle Mass

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Why understanding your body composition matters

Knowing how your body mass is distributed—particularly your muscle and fat mass—is crucial to track your fitness goals, optimize your nutrition, and improve your health.

Our free body composition calculator offers a reliable estimate for both men and women. With accurate data, you can tailor your workouts and monitor your progress effectively.

This online tool uses science-backed formulas to provide results. Understanding how the calculations work helps you make smarter decisions for your body.

Learn how we calculate