Military Body Composition Standards: How Each Branch Measures
Each branch sets its own body composition standard, and the gap between them widened in July 2026 when the Army abandoned body fat measurement entirely. No joint standard exists to look up, so if you are searching for a number, your first question is which branch is asking.
Army
Waist at the navel divided by height, pass below 0.55. Army Directive 2026-13 made this the whole assessment on 7 July 2026, replacing the height and weight tables, the circumference tape test and the supplemental methods that used to serve as an appeal. Age, sex and weight play no part. The Army body composition calculator runs it, and the history of the tape test covers what it replaced.
Navy
The Navy runs a body composition assessment ahead of its physical readiness test. Sailors are screened against a height and weight table, and anyone over it moves to a single-site abdominal circumference measurement, with a circumference-based body fat estimate as a further step. The structure the Army just abandoned is, broadly, the structure the Navy still uses.
Marine Corps
The Marine Corps keeps a height and weight screen backed by a tape measurement, and it ties body composition to performance: Marines who score highly enough on the physical and combat fitness tests can be exempt from the body fat assessment even when they exceed the weight table. That exemption logic is the same idea the Army used to run, and the Corps has kept it.
Air Force and Space Force
The Air Force dropped body fat percentage years ago and now scores a waist measurement inside the fitness test itself, with no separate gate. A waist figure contributes points alongside the cardio and strength components.
Each branch also runs a fitness test alongside the body composition check, and the two are scored separately everywhere. The Army side of that is the AFT, five events with a 60-point floor on each, which the Army Fitness Test calculator scores against the published tables.
The pattern underneath
Every branch is converging on abdominal circumference and moving away from predicted body fat percentage. The reasons are the same everywhere. Body fat percentage has to be estimated from an equation, equations disagree with laboratory methods by several percentage points, and a number that moves when muscle mass moves is a poor screen for abdominal fat.
Where they differ is in how much machinery sits around the measurement. The Army stripped it back to one ratio. The others still screen on weight first, which is how a heavy, muscular service member gets taped while a light one with a large waist walks straight past. On the Army side, what follows a failed measurement is a confirmation on the same day and a 180-day validation period. On the Army side, what follows a failed measurement is a confirmation on the same day and a 180-day validation period. On the Army side, what follows a failed measurement is a confirmation on the same day and a 180-day validation period. On the Army side, what follows a failed measurement is a confirmation on the same day and a 180-day validation period.
Before you use any of these numbers
Standards change. This page is a summary written on 20 September 2026, and it carries no regulatory weight: your own branch’s publication outranks it. Check that publication before you plan around a threshold, and ask your chain of command about anything that affects your record. The body fat calculator on this site runs the Navy circumference method for a general estimate, and the comparison of BMI and body fat explains why the two disagree so often.
Scope note, 1 October 2026: This guide provides general adult education and has not had independent clinical review. The figures it gives are estimates, not measurements. See the editorial policy and medical disclaimer.