📏 Body Fat Estimator

Estimate your body fat percentage using the US Navy circumference method.

⚠️ Health Disclaimer: This is an estimation method. Actual body fat measurement requires professional methods like DEXA scan or hydrostatic weighing. Use this as a general reference only.

Gender

Height (cm)

Neck Circumference (cm)

Waist Circumference (cm) — at navel level

Hip Circumference (cm) — required for females

Estimated Body Fat

US Navy Body Fat Method

The US Navy circumference method estimates body fat percentage using height and circumference measurements. For men, it uses neck and waist measurements. For women, it adds hip measurement for greater accuracy.

Body Fat Categories

Essential fat: 2-5% (men), 10-13% (women)
Athletes: 6-13% (men), 14-20% (women)
Fitness: 14-17% (men), 21-24% (women)
Average: 18-24% (men), 25-31% (women)
Obese: 25%+ (men), 32%+ (women)

Reference: US Navy / Department of Defense