According to Army grooming standards, facial hair must not exceed how many inches?

• A. Zero inches
• B. One-half inch
• C. Three-eighths inch
• D. One-quarter inch

Answer: (D)

Facial hair length is limited to keep a neat, uniform appearance in uniform. The standard allows a neatly trimmed mustache but restricts overall facial hair to not exceed a quarter of an inch. This small, tidy length ensures hair stays unobtrusive under headgear and looks professional across personnel. Longer lengths—such as a half inch or more—would be out of compliance, while requiring zero inches would disallow even a mustache that is within regulation. So the maximum allowed is a quarter inch. (Medical or religious accommodations can apply, per policy.)