이병/二兵 - Private/Seaman Apprentice
일병/一兵 - Private First Class/Seaman
상병/上兵 - Corporal/Petty Officer 3rd Class
병장/兵長 - Sergeant/Petty Officer 2nd Class
하사/下士 - Staff Sergeant/Petty Officer 1st Class
중사/中士 - Sergeant First Class/Chief Petty Officer
상사/上士 - Master Sergeant/Senior Chief Petty Officer
원사/元士 - Sergeant Major/Master Chief Petty Officer
소위/少尉 - Second Lieutenant/Ensign
중위/中尉 - First Lieutenant/Lieutenant Junior Grade
대위/大尉 - Captain/Lieutenant
소령/小領 - Major/Lieutenant Commander
중령/中領 - Lieutenant Colonel/Commander
준장/准將 - Brigadier General/Commodore Admiral
소장/小將 - Major General/Rear Admiral
중장/中將 - Lieutenant General/Vice Admiral
원수/元帥 - General of the Army/Air Force of the ROK/Fleet Admiral of the ROK
ここからの画像。/Images from here.