Free tools · Body Composition
Body Fat Calculator
Free · No signupU.S. Navy tape-measure method. Neck, waist, and hip circumferences in, body-fat percentage and category out.
Your stats
Estimated body fat
9.3%
Athletic · U.S. Navy tape method
Questions
Is the Navy method as accurate as DEXA?
No. DEXA is a lab method. Navy tape is a convenient estimate. Use the same tape sites and time of day if you want a trend.
Is this medical advice?
No. These calculators are for wellness and fitness planning only. Talk to a physician before changing how you eat or train.
Related tools
FFMI Calculator
Fat-Free Mass Index from weight, height, and body fat — how muscular you are relative to your frame.
Lean Body Mass Calculator
Fat-free mass and fat mass from scale weight and body-fat percentage, in lb or kg.
AI Body Fat from Photo
One gym photo in, a body-fat range and confidence out. One free estimate per day. Wellness estimate, not DEXA.
Hammr Fitness is for wellness and fitness purposes only. It is not medical advice. Consult a physician before starting any exercise or nutrition program. If you have a medical emergency, call emergency services.
