Army Body Fat Calculator
What is the Army one-site tape test?
The Army one-site tape test estimates body fat percentage from body weight and a single abdominal measurement at the navel. AR 600-9 caps body fat at 20–26% for men and 30–36% for women depending on age. It replaced the multi-site neck and waist method in June 2024.
Your Measurements
How to measure
- Abdomen: Tape level with the navel, snug but not compressing the skin
- Timing: Read at the end of a normal breath out. Don't suck in.
- Accuracy: Take three readings and average them
Army Body Fat Standards by Age (AR 600-9)
| Age | Men (max %) | Women (max %) |
|---|---|---|
| 17–20 | 20% | 30% |
| 21–27 | 22% | 32% |
| 28–39 | 24% | 34% |
| 40+ | 26% | 36% |
The Army One-Site Body Fat Formula
Army Directive 2023-11 replaced the multi-site tape method with a one-site formula based on body weight and abdominal circumference. It took effect for all soldiers in June 2024.
- Men: %BF = −26.97 − (0.12 × weight lbs) + (1.99 × abdomen in)
- Women: %BF = −9.15 − (0.015 × weight lbs) + (1.27 × abdomen in)
Worked example: a 25-year-old man who weighs 180 lbs with a 36-inch abdomen gets −26.97 − 21.6 + 71.64 = 23.1%. His limit is 22%, so he is 1.1 points over. At age 28 his limit rises to 24% and the same measurements pass.
Abdominal circumference drives the result. For men, each inch off the abdomen lowers the estimate by about 2 points. At the same abdomen measurement, a heavier soldier scores lower, because the formula treats the extra weight as lean mass.
Army Body Fat FAQ
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