This tool uses established anthropometric formulas to estimate body composition without bioelectrical impedance machines.

1. Body Fat % (US Navy Method)

Uses neck, waist, height (and hip for women) measurements. It is considered one of the most accurate manual methods.

2. Resting Metabolism (Mifflin-St Jeor)

Calculates calories burned at complete rest. Considered more accurate for modern populations than the older Harris-Benedict equation.

3. Visceral Fat Risk

Estimated using the Waist-to-Hip Ratio (WHR). This indicates fat stored around internal organs.

4. Body Age

An estimation based on your BMR. If your BMR is higher than the average for your age (implying more muscle mass), your body age is calculated as younger.