How to Use the Body Fat Percentage Calculator (US Navy Method)
- Select your gender (Male or Female) and enter your height and weight.
- Measure and input neck circumference and waist circumference (at navel).
- For females, enter hip circumference at the widest point.
- View your body fat percentage, lean body mass (kg), and fitness category.
Key Features & Capabilities
- Official US Navy circumference formula with gender-specific algorithms.
- Separates total weight into Lean Body Mass (LBM) and Fat Mass.
- Body composition classification (Athletes, Fitness, Average, Obese).
Technical Architecture & Privacy
Body Fat Percentage Calculator (US Navy Method) is engineered with a focus on performance, mathematical accuracy, and maximum user privacy. Operating entirely in-browser on the client side, all processing takes place locally within your browser's JavaScript engine. None of your financial numbers, text entries, or private inputs are ever transmitted to or stored on remote servers.