What changed in July 2026
For decades the Army decided body composition in two steps. You were weighed against a screening table for your height, age and gender; if you exceeded it, a sergeant taped you and an equation turned those measurements into a body fat percentage. That percentage was then compared against a limit that rose with age.
All of it is gone. Army Directive 2026-13, signed by Secretary of the Army Dan Driscoll on 1 July 2026 and announced on 7 July, made waist-to-height ratio the sole authorized measurement under the Army Body Composition Program. The directive discontinues the height and weight screening tables outright, and states that no secondary or supplemental body composition method — the circumference tape test included — may be used to challenge a WHtR result.
Three consequences are worth spelling out, because they change how people should read older material still circulating online:
- No body fat percentage is calculated at all any more. There is no Army body fat number to compute, so there is no age-banded percentage limit either. Any page still showing a table of allowable percentages by age is describing a system that was rescinded.
- Age and gender no longer change the threshold. One number, 0.55, applies to every soldier.
- No fitness test score exempts you. The provision that waived body composition assessment for a high Army Fitness Test score was rescinded by name in the same directive.
The policy applies to the Regular Army, the Army National Guard and the Army Reserve, and reaches cadets at West Point and in Senior ROTC, retention actions, and military schools and institutional training courses. It is explicitly not retroactive. Every soldier was to have a ratio measured and recorded in the Army Training Information System within 90 days of the directive.
The formula, in full
There is only one equation, and it has no coefficients to memorise:
WHtR = waist circumference ÷ height
Waist is measured at the navel. Height is measured without shoes. The standard is a ratio of less than, and not equal to, 0.55 — the directive words it that way deliberately, so a reading of exactly 0.550 does not pass.
A detail worth understanding, because it is a common source of confusion: the units cancel. A ratio has no dimension, so measuring both numbers in inches and measuring both in centimetres give the same answer. A soldier 69.5 inches tall with a 35-inch waist has a ratio of 0.504; the same soldier measured as 176.5 cm and 88.9 cm also has a ratio of 0.504. Army documentation describes the measurement in inches, and that is what will be recorded on your DA Form 5500, but you cannot arrive at a different verdict by switching tapes. What you must never do is mix them — a waist in centimetres over a height in inches produces a meaningless number roughly two and a half times too large.
The arithmetic that matters more in practice is the one run backwards. Multiply your height by 0.55 and you have the largest waist that still passes. At 69.5 inches that is 38.2 inches; at 72 inches it is 39.6. Because height is fixed, that figure is a fixed target, which makes this standard far easier to plan against than a percentage that moved with your weight.
Measuring so the number holds up
Two measurements decide the whole assessment, so small errors carry more weight than they did under the old multi-input equation. On a 70-inch frame, half an inch of waist moves the ratio by roughly 0.007 — enough to cross the line if you are sitting near it.
- Find the navel, not the narrowest point. Many people instinctively tape where their waist looks smallest, which is usually higher. The measurement site is the belly button.
- Keep the tape level all the way round. A tape that rides up at the back reads short and will not survive a confirmation measurement by a second team.
- Breathe out normally first. Not a forced exhale, not a held breath — the tape is read at the end of a relaxed breath out.
- Snug, not compressing. The tape should sit against skin without indenting it.
- Measure height without shoes, heels together, standing tall. An inch of posture is an inch of ratio.
- Take more than one reading. Repeating the waist measurement and taking a consistent result is the cheapest accuracy you will get.
Timing is now written into policy as well. Commanders and supervisors are required to allow a minimum of seven days between the Army Fitness Test or Combat Field Test and a WHtR assessment, so that one does not distort the other, though they may deviate for urgent operational needs.
What happens at 0.55 or above
The sequence is short and it is defined in the directive rather than left to local practice.
If your initial measurement does not meet the standard, a confirmation measurement is taken on the same duty day by a different team from the one that measured you first. That second reading must happen before the commander takes any action. If it confirms a ratio of 0.55 or greater, you are flagged — flag code K, which remains non-transferable — and enrolled in the Army Body Composition Program.
For Regular Army and Active Guard Reserve soldiers, the commander then requests a medical examination to establish whether an underlying condition is directly responsible. Guard and Reserve soldiers may request that examination themselves, at their own expense if they are not on active duty.
Two things the new policy removed are worth knowing. Mandatory monthly assessments and formal progression requirements while enrolled are rescinded; commanders decide when to reassess and remove a soldier from the program as soon as the standard is met. And on separation: units may initiate separation action for a flagged soldier, but the directive states that no soldier will be separated until a 180-day assessment is completed by Headquarters, Department of the Army and further guidance is issued.
Administratively, the ratio is recorded on DA Form 5500 and in the Army Training Information System. DA Form 5501, the female body fat worksheet, was rescinded along with the method it served. Commanders may direct an assessment at any time if they believe a soldier is not meeting the standard.
The old tape test, for reference
The rescinded method is documented here because people still search for it and still encounter it in older guidance — not because it has any current standing. It cannot be used to challenge a ratio, and no Army determination rests on it any more.
From June 2023 until July 2026 the Army used a one-site circumference equation taking abdominal circumference at the navel in inches and body weight in pounds:
Men: body fat % = 1.99 × abdomen − 0.12 × weight − 26.97
Women: body fat % = 1.27 × abdomen − 0.015 × weight − 9.15
The result was compared against limits that rose with age: 20 percent for men aged 17 to 20 through to 26 percent at 40 and over, and 30 to 36 percent across the same bands for women. Before June 2023 a multi-site version measured the neck as well, and the hips for women.
Those limits, the age bands, the supplemental DXA and Bod Pod pathway, and the height and weight screening tables that sat in front of the whole process were all rescinded together. If you are reading a page that still presents any of them as current, it has not been updated since the change.
How each service applies the ratio
The Army was not acting alone, and it was not first. Guidance issued by the Under Secretary of War for Personnel and Readiness in December 2025 directed the services to move to waist-to-height ratio and set the Department ceiling at less than 0.55 across the Joint Force. The Navy and Air Force adopted that figure ahead of the Army.
The ratio is the same arithmetic everywhere — waist at the navel divided by height — but the number you are measured against is not, and what happens next differs more. Two services deviate from the Department figure in ways that matter if you are reading an Army page and serving somewhere else.
| Service | Threshold | If you exceed it |
|---|---|---|
| Army | Under 0.55 | Nothing further. WHtR is the sole standard — there is no body fat assessment behind it. |
| Marine Corps | 0.52 or below | Body fat assessment by multi-site tape or BIA. Passing either one clears the record. |
| Navy | Under 0.55 | Step 2 body fat calculation against maximums that still exist. |
| Air Force / Space Force | Under 0.55 | Secondary body fat assessment. |
The Marine Corps figure is the one that catches people out. MARADMIN 066/26, effective 1 January 2026, set the Corps at 0.52 — deliberately stricter than the Department’s 0.55. In practice that is about two and a half inches of waist: at six feet, a Marine is held to roughly 37 inches where the 0.55 services allow closer to 39.5.
There is a second, smaller difference worth knowing if your number lands exactly on the line. The Marine standard is written as 0.52 or below, so 0.52 passes. The Army standard is written as less than 0.55, so 0.55 fails. A ratio sitting precisely on the threshold is a pass in one service and a failure in the other.
The other genuine gap is what sits behind the screen. For the Army there is nothing behind it — the ratio is the determination. Every other service treats it as a first step, with a body fat assessment underneath that can still clear you. Anyone reading “the military moved to 0.55” as one uniform change will get the Army and the rest backwards.
Beyond the threshold, the administrative machinery around a failure — flagging, enrollment, medical review and separation timelines — is service-specific, and the detail on this page describes the Army’s.
Where a single ratio falls down
WHtR is a better screening tool than the tables it replaced, and it is genuinely well supported in the research literature as a predictor of central adiposity and associated health risk. It is still one number derived from two tape readings, and it inherits the limits of that.
- It cannot distinguish fat from anything else at the waist. A heavily muscled midsection and a soft one measure the same.
- It ignores where the rest of your mass sits. Two soldiers with identical ratios can have very different builds and very different body fat percentages.
- It moves with the day. Hydration, a large meal and bloating all shift the tape, and on this standard half an inch is not a rounding error.
- There is no appeal through another method. Under the old system a soldier who believed the tape had misread them could ask for DXA or a Bod Pod. That route is closed — the only recourse is the same-day confirmation measurement and, where relevant, medical review.
- The threshold is a population figure. A ratio below 0.55 is associated with lower risk across large groups; it is not a statement about any individual's health.
The Army has committed to a 180-day assessment of the new standard to validate its accuracy and determine whether adjustments are needed, so the figures on this page may yet move. The directive itself is written to be rescinded once AR 600-9 and AR 600-8-2 are formally revised, which the Army has given itself two years to complete.
Frequently asked questions
What is the Army body fat standard in 2026?
There is no longer a body fat percentage standard. Army Directive 2026-13, effective 7 July 2026, replaced every body fat method with a single waist-to-height ratio, and the requirement is a ratio of less than 0.55.
How do I calculate my Army waist-to-height ratio?
Divide your waist circumference, measured at the navel, by your height measured without shoes. Use the same unit for both, because a ratio has no units. A 35-inch waist on a 69.5-inch frame gives 0.504.
Does the Army still do the tape test?
No. The circumference tape test was rescinded in July 2026, along with the height and weight screening tables. It cannot be used to challenge a waist-to-height ratio result.
Does a high Army Fitness Test score exempt me from the standard?
No. The directive rescinded the exemption for high fitness test scores by name. Every soldier is measured regardless of how they scored.
What happens if my waist-to-height ratio is 0.55 or higher?
A different team measures you again on the same duty day to confirm. If the ratio holds, you are flagged and enrolled in the Army Body Composition Program, and a medical examination follows to rule out an underlying cause.
Is the Marine Corps standard the same 0.55?
No. MARADMIN 066/26 set the Marine Corps at 0.52 or below, effective 1 January 2026 — deliberately stricter than the Department-wide 0.55. At six feet that is roughly 37 inches of waist against about 39.5 for the services on 0.55.
Does this calculator work for the Navy, Air Force or Marines?
The arithmetic is identical in every service — waist at the navel divided by height. What differs is the number you are measured against and what happens if you exceed it. Set the threshold to 0.52 for the Marine Corps. And unlike the Army, every other service treats the ratio as a first step with a body fat assessment behind it that can still clear you.
Does the standard change with age or gender?
No. Unlike the body fat percentages it replaced, the 0.55 threshold is the same for every soldier regardless of age or gender.
What is the largest waist I can have and still pass?
Multiply your height by 0.55. At 70 inches tall that is 38.5 inches, and you need to be under it rather than exactly on it.
How often is the assessment taken?
At least twice per calendar year, and a commander may direct an assessment at any time if they are concerned a soldier does not meet the standard.
This calculator applies the publicly documented waist-to-height ratio standard from Army Directive 2026-13 for informational use. It is not an official Army form and not an official determination — only authorized personnel taking a measurement of record can make one. Verify your status with your unit.