U.S. Army Body Fat Calculator (AR 600-9)
Estimate your body fat percentage using the U.S. Army AR 600-9 tape test standard. US units (inches) are the default.
Enter your details
Your results
- Army max for your age
- 22%
- Standard
- Exceeds standard
About AR 600-9
AR 600-9 is the U.S. Army's body composition program. It uses tape measurements of the neck and waist (and hip for women) to estimate body fat.
Soldiers must meet age-graded maximums to remain in compliance.
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Frequently Asked Questions
Where do I measure my neck?
Just below the larynx (Adam's apple) with the tape level around the neck.
Does this guarantee compliance?
No official measurements are taken by trained personnel. This estimator is for personal training use.
Who Uses This Calculator?
Active-duty soldiers, reservists, and ROTC cadets use the Army tape test to see if they meet AR 600-9 body composition standards. The calculator converts neck, waist, and hip measurements into a body fat percentage and compares it to age-graded maximums. This lets service members gauge readiness before official weigh-ins and plan training or nutrition changes if needed, which is especially useful during training cycles where body weight can fluctuate.
Veterans and future military applicants use the calculator to prepare for service standards or physical fitness assessments. Knowing your current body fat percentage early gives you time to adjust workouts and nutrition before a formal tape test. It also helps anyone curious about military body fat standards understand where they stand relative to age-graded requirements and set a realistic timeline for improvement.
Fitness enthusiasts and trainers use this tool to estimate body fat without specialized equipment. A tape measure and a few minutes are enough to get a percentage that tracks changes over weeks. While not as precise as DEXA scans, it is practical and consistent when done the same way each time, making it a good option for home tracking and progress checks between more advanced tests.
How to Interpret Your Results
- •If your estimated body fat is within the Army standard for your age and sex, focus on maintaining your current composition through regular training and balanced nutrition.
- •If you are close to the maximum allowable body fat, add two to three conditioning sessions per week and prioritize protein and fiber to improve composition safely.
- •If you exceed the standard, consult a health professional or fitness coach to create a realistic plan that preserves muscle while reducing body fat.
- •If the result changes significantly, repeat measurements using the same tape placement and time of day to confirm the trend before adjusting your program.