Army Body Composition Calculator
Calculate the current U.S. Army waist-to-height ratio (WHtR) body composition threshold. Enter waist circumference and height in the same unit to see your ratio and whether it is under the current 0.55 threshold.
How It's Calculated
Formula
\text{WHtR} = \dfrac{\text{waist circumference}}{\text{height}}The current U.S. Army body-composition assessment standard uses the waist-to-height ratio (WHtR): waist circumference, measured at the navel, divided by height, using the same unit for both. This replaces the older height/weight tables, circumference tape test, and supplemental body-fat percentage assessments the Army previously used. The current threshold is WHtR under 0.55; a ratio of 0.55 or above does not meet the current threshold. Because the ratio is unitless, converting both measurements to a different unit (inches to centimeters, for example) never changes the result — only the same unit must be used for both waist and height. This is an estimate for general informational and educational purposes, based on a published formula — it is not a medical diagnosis, and it is not a substitute for individualized advice from a qualified healthcare provider. This calculator reports where your ratio falls against the current published threshold; it is not an official Army determination, and it does not calculate a body-fat percentage. Standardized official measurement and confirmation procedures may still apply.
Worked Examples
Waist 32 in, height 64 in
- WHtR = waist / height = 32 / 64 = 0.5
- 0.5 is under the current 0.55 threshold
Waist 35.2 in, height 64 in
- WHtR = 35.2 / 64 = 0.55 exactly
- 0.55 is at, not under, the current threshold — this does not meet it
Frequently Asked Questions
Where is the waist measured?
At the navel, per current Army waist-to-height ratio policy. This calculator does not attempt to describe the full standardized official measurement procedure — it computes the ratio from the waist and height numbers you enter.
Does this calculate my body-fat percentage?
No. Waist-to-height ratio is a different measure than body-fat percentage. This calculator reports your WHtR and whether it is under the current 0.55 threshold, not a body-fat percentage estimate.
Is a WHtR of exactly 0.55 a pass?
No. The current threshold is WHtR under 0.55. A ratio of exactly 0.55 or higher does not meet the threshold.
Does it matter if I use inches or centimeters?
No, as long as you use the SAME unit for both waist and height. Waist-to-height ratio is unitless, so consistent units always produce the same ratio for the same body.
Is this an official Army determination?
No. This reports your result under the current Army WHtR calculator threshold for informational purposes. Standardized official measurement and confirmation procedures administered through official channels may still apply.