Army Body Fat Calculator (AR 600-9)
Calculate your body fat percentage and military readiness status according to US Army Regulation AR 600-9 circumference tape test standards.
Circumference Measurements
Army Readiness Assessment
Official Army Body Composition Standards (AR 600-9)
| Age Group | Male Max Allowable % | Female Max Allowable % | Taping Sites (Male) | Taping Sites (Female) |
|---|---|---|---|---|
| 17 to 20 Years | 20.0% | 30.0% | Neck, Abdomen (Navel) | Neck, Waist (Narrowest), Hip (Widest) |
| 21 to 27 Years | 22.0% | 32.0% | Neck, Abdomen (Navel) | Neck, Waist (Narrowest), Hip (Widest) |
| 28 to 39 Years | 24.0% | 34.0% | Neck, Abdomen (Navel) | Neck, Waist (Narrowest), Hip (Widest) |
| 40+ Years | 26.0% | 36.0% | Neck, Abdomen (Navel) | Neck, Waist (Narrowest), Hip (Widest) |
How to Measure for the Army Tape Test
The tape test is authorized under AR 600-9 to measure circumference values when a soldier does not meet screening weight-for-height tables. Measurements must be taken using a non-stretchable vinyl or fiberglass tape.
Approved Circumference Taping Techniques
- Height: Measured standing without shoes, feet flat together, chin parallel to the ground.
- Neck (Male & Female): Measured directly below the larynx (Adam's apple), with the tape perpendicular to the long axis of the neck. Arms relaxed at sides.
- Abdomen (Male): Measured across the center of the naval. The soldier breathes normally and does not suck in the abdomen.
- Waist (Female): Measured at the point of minimal abdominal circumference (the natural waistline, usually midway between the belly button and lower ribcage).
- Hips (Female): Measured at the widest portion of the buttocks from the side profile. The tape must remain completely level and parallel to the deck.
Clinical & Military Notice
This calculator implements the official Department of the Army Pamphlet 600-9 mathematical formulas. Official taping is administered by designated non-commissioned officers using the average of three consecutive tape rounds rounded down to the nearest half-inch. This utility is for educational preparation and personal fitness tracking only.
U.S. Army Body Fat Assessment (DoD / AR 600-9 Compliance)
The United States Army Body Composition Program (governed by Army Regulation AR 600-9) utilizes standardized circumference-based tape test protocols to evaluate military personnel who exceed maximum allowable screening table weights. The tape test estimates body fat percentage using anatomical measurements across the neck, abdomen, and hips (for females), cross-referenced against height to determine fitness readiness.
For deeper analysis and related planning, you can also explore our BMI Calculator and BMR Calculator.
Department of Defense (DoD) Circumference Equations
The official mathematical models derived by Wright and Wilmore compute body density and body fat percentage:
- Male Body Fat Equation: % Body Fat = 86.010 × log10(Abdomen - Neck) - 70.041 × log10(Height) + 36.76
- Female Body Fat Equation: % Body Fat = 163.205 × log10(Waist + Hip - Neck) - 97.684 × log10(Height) - 78.387
- Measurement Precision: All circumferences must be measured horizontally with a non-stretchable vinyl tape, taken three times consecutively and averaged to the nearest half-inch.
Frequently Asked Questions
What is the US Army maximum allowable body fat percentage by age?
Under US Army Regulation AR 600-9: Ages 17-20: Male 20%, Female 30%; Ages 21-27: Male 22%, Female 32%; Ages 28-39: Male 24%, Female 34%; Ages 40 and older: Male 26%, Female 36%.
How does the Army tape test measure body fat?
The Army circumference method uses precise tape measurements. For males, measurements are taken around the neck and abdomen (at the navel). For females, measurements are taken around the neck, waist (at the narrowest point), and hips (widest part of the buttocks). These circumferences are evaluated alongside height using logarithmic equations.
What happens if a soldier fails the Army body fat test?
Soldiers exceeding body fat standards are enrolled in the Army Body Composition Program (ABCP). They undergo nutritional counseling, specialized physical training, and monthly taping until compliant.
What is the official U.S. Army tape test method?
The Army tape test (AR 600-9) estimates body fat percentage using circumference measurements: neck and abdomen (at navel height) for males; neck, natural waist (narrowest point), and hips (widest protrusion of glutes) for females, along with standing height.
What are the maximum allowable Army body fat standards by age?
Under AR 600-9 standards: Males aged 17 to 20: max 20%; 21 to 27: max 22%; 28 to 39: max 24%; 40+: max 26%. Females aged 17 to 20: max 30%; 21 to 27: max 32%; 28 to 39: max 34%; 40+: max 36%.
What happens if a soldier scores 540+ on the ACFT?
Under updated Army directive policies, soldiers who score 540 points or higher on the Army Combat Fitness Test (ACFT), with a minimum of 80 points in each event, are exempt from body fat tape testing requirements regardless of scale weight.