Body Fat Calculator By Weight

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In the pursuit of a healthier lifestyle, understanding your body composition is essential. The Body Fat Calculator By Weight is a simple tool designed to help you determine your lean body mass based on your weight and body fat percentage.

Formula: The calculator uses the formula: Lean Body Mass = Weight – (Weight * (Body Fat Percentage / 100))

How to Use:

  1. Enter your weight in kilograms.
  2. Input your body fat percentage.
  3. Click the “Calculate” button to get your lean body mass.

Example: Suppose your weight is 70 kilograms, and your body fat percentage is 20%. After clicking “Calculate,” the result will show your lean body mass.


  1. Q: How accurate is the Body Fat Calculator? A: The calculator provides a rough estimate. For precise measurements, consult a healthcare professional.
  2. Q: Can I use pounds instead of kilograms? A: The calculator is designed for kilograms. You may need to convert your weight to kilograms for accurate results.
  3. Q: Is this calculator suitable for athletes? A: Yes, the calculator works for a wide range of individuals, including athletes.
  4. Q: What if I don’t know my exact body fat percentage? A: An estimate is sufficient, but for accurate results, consider getting a professional body fat assessment.
  5. Q: Can body fat percentage vary for different age groups? A: Yes, body fat percentage norms may vary based on age and gender.

Conclusion: The Body Fat Calculator By Weight is a handy tool for those looking to understand their body composition. Remember, while this tool provides valuable insights, it’s always advisable to consult with healthcare professionals for a comprehensive assessment of your health and fitness.

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