Army Body Fat Calculator
Calculate body fat using the official US Army circumference method. Get your pass/fail status against Army standards by age and gender.
17.0%
BODY FAT %
PASS
ARMY STATUS
22%
MAX ALLOWED
📐 Where to Measure
Neck
Just below the larynx (Adam's apple), perpendicular to neck axis
Waist
At navel level (belly button). Males: narrowest point. Females: natural waist
Hip (Female only)
Largest circumference around buttocks, parallel to floor
Male: Neck + Waist only
US Army Body Fat Calculation
Estimated Body Fat
17.0%
Max allowed for male, this age group: 22%
📋 US Army Body Fat Standards (AR 600-9)
♂ Male Standards
| Age Group | Max Body Fat % |
|---|---|
| 17-20 | 20% |
| 21-27 | 22% |
| 28-39 | 24% |
| 40+ | 26% |
♀ Female Standards
| Age Group | Max Body Fat % |
|---|---|
| 17-20 | 30% |
| 21-27 | 32% |
| 28-39 | 34% |
| 40+ | 36% |
How the US Army Body Fat Test Works
The Army Body Fat Calculator uses the official circumference-based method from Army Regulation 600-9 (AR 600-9). Unlike scale-based methods, it measures specific body circumferences to estimate body fat percentage without expensive equipment. Every soldier who exceeds the height/weight screening table must meet these standards at each APFT cycle. For the general civilian version of this method, see our body fat calculator.
🧮 The Official Formulas (AR 600-9)
Male: %BF = 86.010 × log10(Waist − Neck) − 70.041 × log10(Height) + 36.76Female: %BF = 163.205 × log10(Waist + Hip − Neck) − 97.684 × log10(Height) − 78.387All measurements in inches. Heights and circumferences are rounded to the nearest 0.5" per AR 600-9.
📏
Neck Measurement
Measure just below the larynx (Adam's apple). Keep tape horizontal. Do not compress skin. Round down to nearest 0.5".
📐
Waist Measurement
Males measure at navel level. Females measure at the narrowest point, taken at the end of normal exhale. Round up to nearest 0.5".
🍑
Hip Measurement (Female)
Measure at largest circumference around the buttocks, parallel to the floor. Round up to nearest 0.5".
🔄
Take 3 Measurements
The Army requires taking each measurement 3 times. Use the average. Must be taken by a trained unit fitness trainer for official record.
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