Body Fat % Calculator

Estimate your body fat percentage using the US Navy method — just tape measure measurements, no calipers needed.

Sex

Measurement Unit

Height

Waist (at navel)

Neck (below larynx)

Hips (widest point) — Female only

—

Body Fat %

Coach's note: The Navy method has ±3–4% error vs DEXA. It's best used to track trends over time rather than as an absolute number. Measure consistently: same time of day, same conditions.

Get a program built around your body composition goal

TrainSMS personalizes your workout program for your current body composition — whether you're cutting, building, or recomping.

Build my program →