Body Fat Percentage Calculator

What Your Results Include

Your results will show the following detailed body composition information:

• Body Fat Percentage: The estimated percentage of your total body weight that is made up of fat. This is the primary indicator of your overall body composition.
• Body Fat Category: Your classification based on established charts, such as Essential Fat, Athlete, Fitness, Average, or Obese. These categories help you understand where you currently stand.
• Body Fat Mass: The total amount of fat in your body, measured in kilograms or pounds. This value represents your actual fat weight.
• Lean Body Mass: Everything in your body that is not fat, including muscle, bone, organs, and water. This is a key metric for tracking muscle gain or fat loss progress.
• Ideal Body Fat for Your Age: A recommended body fat range based on age-specific health and fitness standards. Ideal ranges differ between younger and older adults.
• Body Fat to Lose to Reach Ideal: An estimate of how much body fat you would need to reduce in order to reach your ideal body fat range. This helps you set realistic goals and track progress over time.

Body Fat Percentage Categories

What Is Body Fat Percentage?

Body fat percentage represents how much of your body weight comes from fat. It is one of the most accurate indicators of fitness, health status, and body composition, far more informative than BMI alone.
This calculator uses the U.S. Navy Method, a widely accepted approach based on simple body measurements to estimate fat percentage for both men and women.

A Body Fat Percentage Calculator is a tool designed to estimate how much of your body weight comes from fat compared to everything else, such as muscle, bone, organs, and water. Unlike BMI, which only uses height and weight, this calculator relies on actual body measurements to provide a more precise understanding of your composition.

This calculator uses formulas developed by the U.S. Navy, which have been shown to offer reliable results using simple inputs like waist, neck, and hip measurements. The method is suitable for both men and women and provides a practical alternative to advanced techniques such as DEXA scans or hydrostatic weighing.

Body fat percentage is one of the most important metrics for evaluating your overall health and fitness level. It helps you understand whether your body composition is balanced, whether you are storing too much fat, or whether you have a high proportion of lean tissue. This information can be used to:

• Track fat loss progress more accurately than weight alone
• Set realistic goals for reducing body fat or increasing muscle
• Monitor changes during fitness programs
• Assess general health and metabolic risks
• Improve athletic performance by maintaining an optimal lean-to-fat ratio

A well-planned approach to health involves understanding not only your body weight, but how much of that weight is fat versus lean mass. The Body Fat Percentage Calculator gives you a clear starting point and guides you toward healthier, more effective body composition goals.

Why Body Fat Is an Important Health Indicator

A healthy body fat level is linked to better athletic performance, hormonal balance, cardiovascular health, and metabolic function.
Unlike BMI, which only compares height and weight, body fat percentage reveals your true body composition and can guide more precise fitness and nutrition planning.