How the Army Measures Body Fat
The U.S. Army uses a two-step process. Soldiers are first weighed at their screening weight. If their weight exceeds the screening weight for their height and age from the Army's weight-for-height table (AR 600-9), they proceed to the body fat assessment using circumference measurements β the tape test.
The tape test uses a formula based on circumference measurements to estimate body fat percentage. For males: neck circumference and abdominal circumference (at the navel) are measured. The formula is: %BF = 86.010 Γ log10(abdomen β neck) β 70.041 Γ log10(height) + 36.76. For females: neck, waist (smallest circumference), and hip circumferences are measured. The formula is: %BF = 163.205 Γ log10(waist + hip β neck) β 97.684 Γ log10(height) β 78.387. All measurements are in inches.
Maximum allowable body fat percentages vary by sex and age group. For males: 17-20 years = 20%, 21-27 years = 22%, 28-39 years = 24%, 40+ years = 26%. For females: 17-20 years = 30%, 21-27 years = 32%, 28-39 years = 34%, 40+ years = 36%. Soldiers who exceed the body fat standard are enrolled in the Army Body Composition Program (ABCP) and have 6 months to come into compliance.
Calculate your Army body fat percentage
Enter your height and circumference measurements to estimate your body fat using the Army tape test formula and see if you meet the standard for your age group.
Calculate Army Body FatHow to Take and Use Army Tape Test Measurements
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Check the Army weight-for-height screening table first
Before the tape test applies, check if you exceed your screening weight. Find your height in AR 600-9 Table B-2 (males) or Table B-3 (females). If your weight is at or below the screening weight for your height, you pass without a tape test. Screening weights range from approximately 148 lbs for a 5'0" female to 227 lbs for a 6'6" male at the minimum age group, with slight adjustments by age.
- 2
Take circumference measurements accurately
Male measurements needed: height (inches), neck circumference (just below larynx, not Adam's apple), abdominal circumference (at navel, end of normal exhale). Female measurements needed: height, neck, waist (smallest circumference between ribs and hips), hip (largest protrusion of buttocks). Use a flexible tape measure snug against skin but not compressing. Take each measurement twice and average if readings differ by more than 0.5 inch.
- 3
Apply the Army formula for your sex
Males: %BF = 86.010 Γ logββ(abdomen β neck) β 70.041 Γ logββ(height) + 36.76. Females: %BF = 163.205 Γ logββ(waist + hip β neck) β 97.684 Γ logββ(height) β 78.387. Results are rounded to the nearest whole percent. The Army calculator available online or the mobile Fitness App handles the math β but understanding the inputs ensures you take the right measurements.
- 4
Compare your result to your age and sex standard
Male maximum BF: ages 17-20 = 20%, 21-27 = 22%, 28-39 = 24%, 40+ = 26%. Female maximum BF: ages 17-20 = 30%, 21-27 = 32%, 28-39 = 34%, 40+ = 36%. If your estimated body fat is at or below the standard for your age group, you pass. If above, you are flagged for ABCP enrollment.
- 5
Understand ABCP and timeline if flagged
The Army Body Composition Program (ABCP) requires soldiers to meet the standard within 6 months of enrollment. Soldiers in ABCP receive a nutrition counseling referral and a fitness improvement plan. Soldiers flagged for ABCP cannot be promoted, reenlist, attend schools, or receive awards until they pass. Two consecutive ABCP enrollments or failure to meet the standard within 6 months can result in administrative separation.
Frequently Asked Questions
How accurate is the Army tape test compared to DEXA?
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The Army circumference method has an accuracy range of approximately Β±3-4 percentage points compared to DEXA (the gold standard). This means a soldier who tapes at 23% body fat using the Army method might actually be anywhere from 19-27% by DEXA. The method tends to be less accurate for individuals with non-average fat distribution patterns. Soldiers close to the maximum can sometimes appeal for an alternative assessment method, though this is at command discretion.
Are there alternatives to the tape test in the Army?
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The Army began a phased transition to 3D optical scanning technology (3D scan) as an alternative body composition assessment method. When available at a unit, the 3D scan is offered as an alternative to the tape test. The Army has also been exploring additional assessment methods as part of broader AR 600-9 modernization, but the circumference tape test remains the primary method at most installations as of 2024.
Does the Army body fat standard differ by branch?
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Yes β each military branch has its own standards, though they are broadly similar. The Navy and Marine Corps use the same circumference tape method with slightly different formulas and slightly different maximum body fat standards. The Air Force uses BMI-based standards rather than a tape test for initial screening, with different thresholds. The Space Force follows Air Force standards. Check each branch's governing regulation for the specific standard and method.
Can medical conditions cause a soldier to fail the tape test unfairly?
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Certain conditions (lipedema, lymphedema, certain medications including steroids) can cause disproportionate circumference increases that inflate tape test results beyond actual body fat. Soldiers who believe medical conditions are affecting their tape test results can request a medical evaluation and documentation. Documented medical conditions affecting weight or body composition can result in a temporary medical flag rather than ABCP enrollment.
How quickly can I reduce body fat percentage?
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Safely: 0.5-1% of body weight per week, primarily from fat with adequate protein intake and resistance training. For a 200-lb soldier with 25% body fat (50 lbs fat) trying to reach 22% (44 lbs fat): need to lose approximately 6 lbs of fat, which takes roughly 6-8 weeks at a safe pace. The tape test is primarily sensitive to abdominal circumference reduction β reducing overall caloric intake, increasing cardiovascular exercise, and specifically reducing abdominal fat through consistent deficit produces measurable tape test improvement in 6-10 weeks.
Does the Army use a different standard for officer candidates?
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The same AR 600-9 body composition standards apply to officer candidates, enlisted soldiers, and officers alike β there is no separate standard by rank or component for the body fat assessment itself. However, commissioning sources (ROTC, OCS, USMA) may apply stricter standards during the accession process than the in-service maintenance standard. Check with the specific commissioning source for current entrance requirements.
Calculate your Army tape test body fat
Enter your measurements to see your estimated body fat and whether you meet the standard for your age group.
Calculate Army Body Fat