Find Your Maximum Waist
To meet the Marine Corps standard, your waist (measured at the navel) must be no more than 52% of your height. At 5'10", that's 36.4 inches, so 36.0 inches is the highest half-inch reading that passes.
The Full Chart
“Waist at most” is the exact limit (height × 0.52); a reading equal to it passes. The last column shows how much more room the Army's 0.55 rule gives at the same height. Using centimeters? Multiply your height in cm by 0.52.
| Height | Height (cm) | Marines: waist at most | Highest passing reading | Army highest passing (0.55) |
|---|---|---|---|---|
| 4'10" (58 in) | 147 cm | 30.16 in | 30 in | 31.5 in |
| 4'11" (59 in) | 150 cm | 30.68 in | 30.5 in | 32 in |
| 5'0" (60 in) | 152 cm | 31.2 in | 31 in | 32.5 in |
| 5'1" (61 in) | 155 cm | 31.72 in | 31.5 in | 33.5 in |
| 5'2" (62 in) | 157 cm | 32.24 in | 32 in | 34 in |
| 5'3" (63 in) | 160 cm | 32.76 in | 32.5 in | 34.5 in |
| 5'4" (64 in) | 163 cm | 33.28 in | 33 in | 35 in |
| 5'5" (65 in) | 165 cm | 33.8 in | 33.5 in | 35.5 in |
| 5'6" (66 in) | 168 cm | 34.32 in | 34 in | 36 in |
| 5'7" (67 in) | 170 cm | 34.84 in | 34.5 in | 36.5 in |
| 5'8" (68 in) | 173 cm | 35.36 in | 35 in | 37 in |
| 5'9" (69 in) | 175 cm | 35.88 in | 35.5 in | 37.5 in |
| 5'10" (70 in) | 178 cm | 36.4 in | 36 in | 38 in |
| 5'11" (71 in) | 180 cm | 36.92 in | 36.5 in | 39 in |
| 6'0" (72 in) | 183 cm | 37.44 in | 37 in | 39.5 in |
| 6'1" (73 in) | 185 cm | 37.96 in | 37.5 in | 40 in |
| 6'2" (74 in) | 188 cm | 38.48 in | 38 in | 40.5 in |
| 6'3" (75 in) | 190 cm | 39 in | 39 in | 41 in |
| 6'4" (76 in) | 193 cm | 39.52 in | 39.5 in | 41.5 in |
| 6'5" (77 in) | 196 cm | 40.04 in | 40 in | 42 in |
| 6'6" (78 in) | 198 cm | 40.56 in | 40.5 in | 42.5 in |
| 6'7" (79 in) | 201 cm | 41.08 in | 41 in | 43 in |
| 6'8" (80 in) | 203 cm | 41.6 in | 41.5 in | 43.5 in |
How the Marine Corps Applies the Standard
- The limit: a ratio less than or equal to 0.52. Unlike the Army's rule, a ratio of exactly 0.52 passes.
- Where it's measured: at the navel, on bare skin, with a self-tensioning tape kept level all the way around. Height is measured against a wall with a flat, rigid object on top of the head.
- Over 0.52: a body fat evaluation by multi-site tape or bioelectrical impedance (BIA will replace the tape once fielded), against age- and sex-based standards. Over that standard means enrollment in the Body Composition Program.
- Fitness allowance: 285 or higher on both the PFT and CFT earns a body fat allowance; 250 or higher on both earns an extra 1%. Body fat is capped at 26% for men and 36% for women regardless of scores.
- How often: semiannually, for active and reserve Marines.
Department of Defense guidance (December 2025) says waist and height are recorded in inches, rounded down to the nearest half inch. The Marine Corps quick guide doesn't spell out rounding, so the "highest passing reading" column assumes half-inch readings. Confirm your unit's exact procedure.
Frequently Asked Questions
What is the Marine Corps waist-to-height standard?
Marines must have a waist-to-height ratio less than or equal to 0.52, measured at the navel. It took effect January 1, 2026, under MARADMIN 066/26, and is stricter than the 0.55 limit used by the Army, Navy, Air Force and Space Force.
What is the maximum waist for a 5'10" Marine?
At 5'10" (70 inches), 70 × 0.52 = 36.4 inches. With half-inch readings, 36.0 inches is the highest reading that meets the standard; 36.5 inches gives a ratio of 0.521 and does not.
What happens if a Marine is over 0.52?
The Marine gets a body fat evaluation using the multi-site tape test or bioelectrical impedance analysis. Body fat standards are based on age and sex. Marines over their body fat standard are enrolled in the Marine Corps Body Composition Program.
Do high PFT and CFT scores help?
Yes. Marines scoring 285 or higher on both the PFT and CFT get a body fat allowance, and those scoring 250 or higher on both get an extra 1%. Either way, body fat is capped at 26% for men and 36% for women.
How often are Marines measured?
Body composition is evaluated semiannually for both the active and reserve components.
Compare Every Branch
The Army, Navy, Air Force, Space Force, Marine Corps and Coast Guard all handle body composition differently.
See Standards by Branch →📚 Official Sources
- U.S. Marine Corps. (Feb. 26, 2026). Marine Corps revises body composition standards (MARADMIN 066/26).
DVIDS → - U.S. Marine Corps. Waist-to-Height Measurement Quick Guide.
Quick Guide (PDF) → - Under Secretary of War for Personnel and Readiness. (Dec. 18, 2025). Additional Guidance on Military Fitness Standards.
DoD memo (PDF) →