Army waist-to-height
ratio calculator.
Waist ÷ height. A clear calculation, with the policy in view.
AD 2026-13 · Sources checked October 29, 2026Calculate your WHtR
Use the recorded average of your waist readings, not trouser size or one unprocessed measurement.
Measure. Divide. Understand.
Enter your recorded average waist and height to compare the ratio with the Army’s <0.550 standard.
Independent tool. Not affiliated with the U.S. Army and not an official assessment.
The policy and who it covers
Army Directive 2026-13, dated July 1, 2026, takes effect immediately; the Army FAQ identifies July 7, 2026 as the effective publication date. It covers the Regular Army, National Guard and Reserve, plus USMA and Senior ROTC cadets. This page concerns Army body-composition screening, not accession eligibility or other services.
The Army uses waist divided by height. A height-to-waist ratio is the inverse and cannot be compared with the 0.550 threshold.
Measurement and recording
- Use trained assessors. Measure around the navel with a horizontal tape, without compressing tissue.
- Record three waist readings, each rounded down to a half inch. The worksheet averages these to three decimals.
- Round standing height to the nearest half inch. Divide recorded average waist by recorded height; discard ratio digits after the third decimal.
The implementation annex requests an additional reading if one differs by more than an inch, using the closest three. It also describes rounding that average to a half inch, whereas the July 2026 worksheet asks for a three-decimal average. This calculator accepts the recorded average supplied by your assessment team; it does not resolve that procedural discrepancy. Confirm the value with your unit.
The height conversion uses half-up rounding for exact quarter-inch ties. Supported entry ranges (48–96 in height, 15–100 in waist) are data-entry guardrails, not policy limits.
Understanding the result
A recorded ratio below 0.550 satisfies the threshold; 0.550 does not. For example, 36 in ÷ 70 in = 0.514285… → 0.514. A different team must perform a same-duty-day confirmation after an initial result that does not meet the standard. Pregnancy and postpartum exemptions remain relevant; this tool does not decide exemptions.
Official sources
- Army Directive 2026-13 (PDF) — scope, threshold and confirmation.
- EXORD 182-26 Annex A (PDF) — measurement technique and rounding.
- DA Form 5500, July 2026 (PDF) — averages and ratio precision.
- Army policy hub and official FAQ (PDF) — publication timing and exemptions. The FAQ’s opening directive number differs from its linked primary directive; we use the primary document’s number.
Last checked October 29, 2026. Policies can change; confirm current guidance with your unit before an official assessment.