/Body Fat Calculator

Body Fat Calculator

Estimate your body fat percentage using the US Navy Method

Body Fat Calculator

Estimate your body fat percentage using the US Navy Method

Health Disclaimer: Body fat calculations using measurements are estimates and may not be as accurate as professional methods (DEXA scan, hydrostatic weighing). Results vary based on measurement accuracy and individual factors. Not a substitute for professional medical assessment.

Your Measurements

Gender

Unit System

Age

Weight (kg)

Height (cm)

Neck (cm)

Waist (cm)

Your Results

Enter your measurements to calculate body fat percentage

About Body Fat Calculation

Method Used: US Navy Body Fat Formula — A scientifically validated method used by military and fitness professionals worldwide.

How to Measure

Use a flexible measuring tape. Measure neck at narrowest point, waist at navel level (men) or natural waist (women), and hips at widest point (women only). Take measurements while standing relaxed.

Accuracy

The US Navy method has a margin of error of ±3-4%. For most accurate results, consider professional methods like DEXA scans, hydrostatic weighing, or bod pod testing.

Sources: US Navy, American Council on Exercise (ACE), National Institutes of Health (NIH)