Body Fat Calculator

The U.S. Navy Body Fat Method

This calculator uses the U.S. Navy circumference method, which estimates body fat from height, waist, neck (and hip for women) measurements. While not as precise as DEXA scans or hydrostatic weighing, it's a reliable and widely-used estimation method.

Measurement Tips

• Measure waist at the narrowest point (typically the navel for men).
• Measure neck just below the larynx (Adam's apple), sloping slightly downward.
• Women measure hips at the widest point.
• Take measurements in the morning before eating for consistency.