Body Fat Calculator
Uses the U.S. Navy circumference method — estimate your body fat % with just a measuring tape, no calipers or scans needed.
Estimated Body Fat
17.8%
Body Fat Categories (Men)
Essential
2–5%
Athletes
6–13%
Fitness
14–17%
Average
18–24%
Obese
25%+
Measure your waist at the navel and your neck just below the larynx, standing relaxed, for the most accurate estimate.
For reference purposes only. This calculator provides a general estimate based on standard formulas and is not a medical diagnosis. It does not account for every individual factor (medical conditions, medications, pregnancy, body composition, etc.). Please consult a qualified doctor, dietitian or coach before making any health, nutrition or fitness decisions.
These estimates are general adult guidance, not a diagnosis or a nutrition plan for a growing child. Discuss individual needs with a qualified clinician or dietitian.
Read more: Nutrition Basics for Young Athletes · CSA Blog · Youth training