◑ HEALTH Updated July 25, 2026

Body Fat Calculator

Body fat percentage from simple tape measurements.

Sex
Height (cm)
Weight (kg)
Neck (cm)
Waist (cm)
Hip (cm, women)
Result
Ad space · belowTool · horizontal

How it works

The US Navy circumference method estimates body fat from neck, waist, and (for women) hip measurements together with height. It is accurate to roughly ±3 percent for most people.

Related tools

◕BMR Calculator◈Calorie Calculator▤Ideal Weight Calculator

Frequently asked questions

How accurate is the tape method?

Within about 3 percentage points of a DEXA scan for most adults, which is good enough to track change over time.

What is a healthy body fat percentage?

Roughly 8 to 20 percent for men and 21 to 33 percent for women, varying with age and athletic background.

Comments

Comments aren't enabled yet. When you're ready, this is where a service like Giscus, Disqus, or a custom form would go — the slot is already reserved on every tool page.