Army Body Fat Calculator

The Army body fat standard is now a waist-to-height ratio (WHtR): your waist at the navel divided by your height. Under Army Directive 2026-13, signed on 1 July 2026, a ratio under 0.55 meets the standard, and the WHtR is the only body composition measure the Army uses¹. A tape-test body fat percentage no longer decides whether a Soldier passes, so this calculator gives the WHtR result first and the former one-site tape test only as a reference.

The 2026 Waist-to-Height Standard

Every Soldier is measured at least twice a calendar year, and a commander can order a measurement at any time¹. The rules come from the directive and the Army’s own questions-and-answers sheet²:

• Waist circumference is measured at the navel (belly button), in inches, and divided by height in inches.

• The ratio is recorded to three decimal places and is not rounded. Digits after the third decimal are dropped, so 0.549 meets the standard and 0.550 does not.

• If the first measurement is 0.55 or higher, a different team re-measures on the same duty day before any action is taken.

• A Soldier who is still at 0.55 or higher is flagged and enrolled in the Army Body Composition Program (ABCP).

• There is no age or sex adjustment, and no Army Fitness Test score exempts a Soldier from the standard.

WHtR = waist at the navel ÷ height (same unit for both)

What Happens If You Don’t Meet It

The height and weight screening tables are discontinued, and no tape test or other body fat assessment can be used to challenge a WHtR result¹. Regular Army and Active Guard Reserve Soldiers enrolled in the ABCP get a commander-directed medical exam to rule out an underlying condition, and Reserve Component Soldiers can request one at their own expense². The Army is running a 180-day assessment of the new standard, and no Soldier will be separated for failing it until that review is finished and further guidance is issued¹. The standard covers the Regular Army, Army National Guard and Army Reserve, plus West Point and Senior ROTC cadets². Existing medical exemptions for pregnant and postpartum Soldiers still apply².

How This Calculator Computes Your Result

Enter your height and your waist at the navel. The calculator divides waist by height, cuts the result to three decimals without rounding, and checks it against 0.55. It also shows the waist that meets the standard at your height, which is anything under 0.55 × your height. At 5 ft 10 in (70 inches), for example, the waist must be under 38.5 inches: a 38.5-inch waist gives exactly 0.550 and does not meet the standard, while 38.49 inches gives 0.549 and does. At 178 cm the line is 97.9 cm.

The Former One-Site Tape Test

From June 2023 the Army taped Soldiers who were over the height and weight screening table at one site³, the abdomen at the navel, and from 8 June 2024 the one-site test was the only authorized tape method⁴. Army Directive 2026-13 rescinded it¹. If you add your sex, age and weight, the calculator shows that estimate for reference:

Men: Body Fat % = −26.97 − (0.12 × weight in lb) + (1.99 × abdominal circumference in inches)

Women: Body Fat % = −9.15 − (0.015 × weight in lb) + (1.27 × abdominal circumference in inches)

The Army rounded the result to the nearest whole percent. In the Army’s own worked examples, a man weighing 210 pounds with a 35-inch abdomen comes out at 17.48%, recorded as 17%, and a woman weighing 165 pounds with a 30-inch abdomen comes out at 26%⁴.

Former Maximum Body Fat by Age and Sex

Before July 2026, a Soldier who was over the screening table had to be at or under these limits from AR 600-9⁵. They are no longer an Army standard, but the calculator compares your tape-test estimate with them if you enter your age.

How to Measure Correctly

Stand straight with your arms at your sides. Wrap the tape around your navel, level with the floor, snug but not pressing into the skin, and read it at the end of a normal relaxed breath. Measure height without shoes. Neither the directive nor the Army’s questions-and-answers sheet sets a rounding rule for the WHtR waist reading, so for your own check take three readings and use the average. Under the former tape test, AR 600-9 had each abdominal reading rounded down to the nearest half inch and the three averaged⁵.