Army body fat calculator

What is the current Army body fat standard?

Since Army Directive 2026-13 (July 2026), the only standard is the waist-to-height ratio: waist at the navel ÷ height, both in inches, must be less than 0.55. At 70 inches tall, the waist must be under 38.5 inches.

How is the waist measured?

At the level of the navel. Height is measured in inches as well; the directive calls for measurements at least twice a year.

What happened to the tape test?

The one-site tape test used from 2023 estimated body fat from weight and waist: for men, −26.97 − 0.12 × weight + 1.99 × waist. The 2026 directive rescinded it, along with the height and weight screening tables; the calculator still shows it for reference.

Can a high fitness test score exempt me?

Not anymore — the 2026 directive ended the exemption for high fitness test scores.

What were the old body fat limits?

Under the 2023 rules: 20% for men and 30% for women aged 17–20, 22% and 32% at 21–27, 24% and 34% at 28–39, and 26% and 36% at 40 and older.

What happens if my first measurement is 0.55 or higher?

The Army describes a confirmation measurement taken the same duty day by a team other than the one that took the first set. The standard is met only when the ratio is below 0.55, so a ratio of exactly 0.55 does not pass. Enrollment in the Army Body Composition Program is triggered at 0.55 or higher.

Does the 2026 standard use my weight?

No. Only the waist at the navel and the height are used, and weight does not enter the calculation. The old height-and-weight screening tables were discontinued with the directive.

Is there a gap required between the fitness test and the waist measurement?

Army reporting on the directive mentions a buffer of 7 days between a physical fitness test and the waist-to-height assessment. Ask your unit for the current local procedure, since this calculator cannot schedule measurements.

How the standard works

The waist-to-height ratio is the waist circumference at the navel divided by height, with both in inches. A ratio below 0.55 meets the standard. Rearranged, the largest waist that passes at a given height is 0.55 × height, so the allowed waist grows by 0.55 inch for each extra inch of height. Because the ratio is compared exactly with 0.55, a single inch at the waist can change the result near the limit. The calculator also shows the earlier one-site body fat estimate for reference only, because the directive no longer uses it.

Worked example

A soldier is 70 inches tall. The largest waist that passes is 0.55 × 70 = 38.5 inches. With a waist of 37 inches the ratio is 37 ÷ 70 = 0.529, which is below 0.55, so the standard is met. With a waist of 39 inches the ratio is 39 ÷ 70 = 0.557, which is above the limit. Two inches at the waist decide the outcome here.

Common mistakes

• Measuring at the narrowest point. The directive measures at the navel. The circumference differs at other levels of the torso, so measure where the directive says.
• Mixing units. Waist and height must both be in inches. Entering a height in feet or a waist in centimeters will give a ratio that is far from the real one.
• Treating the result as official. This tool shows how the formula works. Only the measurement taken by your unit, with its confirmation procedure, counts.

Sources and related calculators

Standard and procedure: Army Directive 2026-13, "Army Body Composition Program and Standards," and the Army News Service article "Army modifies body composition program, adopts waist-to-height ratio" on army.mil. Related: body fat calculator, BMI calculator and waist-to-height ratio calculator.

For general information only — not medical advice. Talk with your doctor or another health professional about your own health. How we check our calculators.