Composition Modeling Lab
- Select your Gender and enter your Weight and Height.
- Measure your Neck, Waist, and Hips (for women) using a flexible tape measure.
- Enter the measurements in centimeters (cm).
- Observe the Mass Component Analysis donut chart showing your Fat vs Lean ratio.
- View your Body Fat Percentage, Fat Mass, and Lean Mass results.
- Click Copy Composition Report to save the data for your fitness journey tracking.
WHO Recommended Parameters
Maintaining healthy body fat limits directly correlates with minimizing WHO obesity-related risks and ensuring optimal long-term physiological health.
Frequently Asked Questions
What is the US Navy Body Fat Method?
The US Navy method is a formula that uses circumference measurements (Neck, Waist, and Hips for women) along with height to estimate body fat percentage. While not as accurate as DXA scans, it is a reliable and accessible screening tool.
Where should I take the measurements?
For men, measure the neck below the larynx and the waist at the level of the navel. For women, measure the neck, the waist at the narrowest point, and the hips at the widest point. Ensure the tape is level and snug but not compressing the skin.
What is a healthy body fat percentage?
Healthy ranges vary by age and gender. For men, fitness levels are typically 14-17% and acceptable up to 24%. For women, fitness levels are 21-24% and acceptable up to 31%.
What is Lean Body Mass?
Lean Body Mass (LBM) is the amount of weight you carry overall that isn't fat. This includes muscles, bones, organs, and water. Tracking LBM is essential for monitoring muscle gain during strength training.
Athletic Lab Benefits
- Instant Body Fat and Lean Mass algorithms
- Interactive body composition donut analysis preview
- Integrated US Navy precision engine for non-invasive testing
- Supports gender-specific measurement adjustments
- 100% private — your body data stays local
- Mobile-optimized for checking progress at the gym