Army Body Fat Calculator

Modify the values and click the Calculate button to use

Body Fat: 25%

Maximum allowed for your age: 22%
Standard: Not in compliance
Excess body fat: 3%
Fat to lose to meet the standard: 5 lb

This uses the U.S. Army one-site tape method from ALARACT 046/2023. It is a screening standard, not a medical diagnosis.

What this Army body fat calculator does

The U.S. Army uses a one-site circumference method to estimate body fat for its body composition program. The method uses body weight and abdominal circumference measured at the navel. This calculator estimates body fat percentage, compares it with the maximum allowed for your age and sex, and shows how much body fat would need to be lost to meet the standard.

It follows the one-site method described in ALARACT 046/2023 and Army Directive 2023-11. It is a screening tool for the Army standard, not a medical body composition measurement.

How to use this calculator

Select your sex.
Enter your age.
Enter your body weight in pounds.
Enter your waist circumference in inches, measured at the navel.
Click Calculate to see body fat, the standard, and the excess.

The default example is a 21-year-old man who weighs 165 lb with a 36-inch waist.

Army body fat formulas

Men:
  body fat % = −26.97 − (0.12 × weight in lb)
              + (1.99 × waist in inches)

Women:
  body fat % = −9.15 − (0.015 × weight in lb)
              + (1.27 × waist in inches)

The result is rounded to the nearest whole percent. The maximum allowable body fat depends on age and sex; for a 21-year-old man it is 22%, and for a 21-year-old woman it is 32%.

What the results mean

Body fat: the one-site estimate. The default example is 25%.
Maximum allowed: the Army standard for your age and sex. The default is 22%.
Standard: whether the estimate meets the maximum.
Excess body fat: the number of percentage points above the standard.
Fat to lose: the pounds of fat associated with the excess. The default example is 5 lb.

Assumptions and limitations

The formula assumes the waist is measured at the navel, with the tape level and snug, and that weight is measured accurately. Measurements should be taken more than once and rounded as the Army guidance requires.

The calculator does not determine exemption from the body fat assessment, such as the ACFT exemption. It does not replace the official DA Form 5500/5501 process or a commander's decision. It is not medical advice.

Frequently asked questions

Where should I measure my waist?

At the navel, with the tape parallel to the floor. Keep the tape snug without compressing the skin. Follow the Army measurement instructions for the official assessment.

Why is the Army method different from the Navy method?

The Army's 2023 one-site method uses only weight and abdominal circumference. The Navy method uses neck, waist, and sometimes hip measurements. The formulas and standards are different.

What if I am close to the standard?

A single measurement can vary. Use the result as a signal, not a decision. The official assessment should follow the Army's measurement and rounding procedures.

Does the calculator account for age?

Yes. The maximum allowable percentage is based on your age and sex. The body fat formula itself uses weight and waist only.

Reference tables

Body fat standards by gender

Gender	male female
Male	Standard varies by regulation and age
Female	Standard varies by regulation and age

Illustrative age bands

Age	Male	Female
17–20	20%	30%
21–27	22%	32%
28–39	24%	34%
40–55	26%	36%
56+	28%	38%

The values above are illustrative historical examples, not the current Army standard. Always check the current regulation and your unit's official assessment procedure.

Source

References:

Disclaimer

This calculator is for informational and educational purposes only. It is not an official Army assessment, a medical diagnosis, or a fitness-for-duty determination. Follow the current Army guidance and consult your command or medical provider.

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