Body Fat Calculator
The U.S. Navy method estimates body fat percentage from waist, neck (and, for women, hip) circumference. It correlates well with more expensive methods like DEXA scans for most people, without needing any special equipment.
Want your results, health tips, and doctor recommendations by email?
Leave your details — no spam, just useful follow-ups from IMCURE.
How this works
Measure at the narrowest point of your neck, at your natural waist (belly-button level), and — if female — at the widest point of your hips. Wrap the tape snugly but not tight.
Medical disclaimer
This tool provides general health information based on published formulas and guidelines. It is not a medical diagnosis and does not replace advice from a qualified doctor. If you have a health concern, please consult a physician or book a consultation on IMCURE.
Frequently asked questions
How accurate is the tape-measure method?
It is typically within 3–4% of DEXA-scan results for most body types, which is accurate enough for tracking progress over time.
What's a healthy body fat percentage?
Commonly cited healthy ranges are roughly 10–20% for men and 18–28% for women, though this varies with age and fitness goals.
