Educational tool — not a diagnosis. VivMetric calculators estimate body and fitness metrics using CDC, WHO, and NIH reference formulas. They do not provide medical advice, diagnosis, or treatment.
Always consult a licensed healthcare provider for medical concerns. If you are in emotional distress or thinking about harming yourself, contact the 988 Suicide & Crisis Lifeline (call or text 988, US, 24/7) or see the WHO mental-health resources.
Military Body Fat Standards Checker
Preparing for the military or tracking fitness standards? This tool applies the exact U.S. Army formulas (Hodgdon-Beckett) and the current AR 600-9 active-duty and AR 40-501 enlistment body-fat limits for your age and sex.
The formulas and standards
Men: %BF = 86.010 x log10(waist-neck) - 70.041 x log10(height) + 36.76. Women: %BF = 163.205 x log10(waist+hip-neck) - 97.684 x log10(height) - 78.387. Limits rise with age (AR 600-9 Table B-2).
Important caveat
The official measurement is performed by a trained grader under the official procedure. This calculator gives a close estimate for personal planning only.
Frequently Asked Questions
What is the Army body fat standard by age?
Active duty (AR 600-9): men 20% (17-20), 22% (21-27), 24% (28-39), 26% (40+); women 30/32/34/36% for the same age bands. Enlistment (AR 40-501) adds up to 4 points for men.
How is Army body fat measured?
Since 2023-24 the Army uses a one-site abdominal circumference plus weight method on DA Form 5500/5501; the multi-site Hodgdon-Beckett formula is used for confirmation.
This tool provides educational health metric estimations only. It is not medical advice, diagnosis, or treatment. Always consult a licensed healthcare provider for medical concerns.