How does the Army calculate body fat?

The U.S. Army uses a tape test method to estimate body fat percentage. For males, it measures neck and abdomen circumference. For females, it measures neck, waist, and hip circumference. These measurements are plugged into a formula that estimates body fat percentage, which is then compared against age-based standards. The Army updated its formula in 2023 to use a single abdominal measurement instead of the old waist measurement.

What are the Army body fat standards?

Army body fat standards vary by age and gender. For males: ages 17-20 (20%), 21-27 (22%), 28-39 (24%), 40+ (26%). For females: ages 17-20 (30%), 21-27 (32%), 28-39 (34%), 40+ (36%). Soldiers who exceed these limits are enrolled in the Army Body Composition Program (ABCP) and must reduce their body fat within 90 days.

What is the Army Body Composition Program (ABCP)?

The Army Body Composition Program (ABCP) is a remedial program for soldiers who exceed body fat standards. Soldiers in ABCP are weighed and measured monthly, receive nutrition counseling, and must show progress toward the standard within 90 days. Failure to meet standards can result in administrative action, including separation from service.

How do I measure correctly for the Army tape test?

For males: measure the neck at the narrowest point (just below the larynx) and the abdomen at the navel level. For females: measure the neck at the narrowest point, the waist at the narrowest point between the ribs and hips, and the hips at the widest point. Take each measurement to the nearest 0.5 inch and use the average of three measurements for accuracy.

Can I pass the tape test but fail the height/weight screening?

Yes. The Army uses a two-step process. First, soldiers are weighed against the Army height/weight screening table. If they exceed the screening weight, they proceed to the tape test. Soldiers can exceed the screening weight but still pass if their body fat percentage is within standards. This allows muscular soldiers who are heavy but lean to remain in compliance.

Health & Fitness

Army Body Fat Calculator

Calculate your body fat percentage using the official U.S. Army tape test method. Instantly see if you meet Army weight and body fat standards for your age and gender.

Gender

Age (years)

Height

Weight (lbs)

Circumference Measurements (inches)

Measure to the nearest 0.5 inch. Take 3 measurements and use the average.

Neck (narrowest point)

Abdomen (at navel)

Formula (AR 600-9, 2023)

Male: %BF = (86.010 × log₁₀(abdomen − neck)) − (70.041 × log₁₀(height)) + 36.76

Female: %BF = (163.205 × log₁₀(waist + hip − neck)) − (97.684 × log₁₀(height)) − 78.387

All measurements in inches. This calculator is for informational purposes only. Official Army measurements must be taken by a certified unit representative.

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How to Use the Army Body Fat Calculator

Calculate your Army body fat percentage and check your compliance with Army standards.

1
Select your gender and age
Choose male or female and enter your age. The Army has different body fat standards for each age group and gender.
2
Enter your height and weight
Input your height in inches and weight in pounds. The calculator will check you against the Army screening weight table first.
3
Enter your circumference measurements
For males: enter neck and abdomen measurements in inches. For females: enter neck, waist, and hip measurements. Measure to the nearest 0.5 inch.
4
Review your results
See your estimated body fat percentage, whether you meet Army standards, and how much body fat you would need to lose to be in compliance if you are currently over the limit.

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Army Body Fat Calculator

Circumference Measurements (inches)

Formula (AR 600-9, 2023)

How to Use the Army Body Fat Calculator

Frequently Asked Questions

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