Military Rank Equivalence

Rank Ladder Highest first

🇪🇸 Spain · Army	NATO equivalent	United Kingdom · Army 🇬🇧
Officers
Capitán general	OF-10 Marshal / General of the Army	Field marshal
General de ejército	OF-9 General	General
Teniente general	OF-8 Lieutenant General	Lieutenant-general
General de división	OF-7 Major General	Major-general
General de brigada	OF-6 Brigadier General	Brigadier
Coronel	OF-5 Colonel	Colonel
Teniente coronel	OF-4 Lieutenant Colonel	Lieutenant colonel
Comandante	OF-3 Major / Commandant	Major
Capitán	OF-2 Captain / 1st Lieutenant	Captain
Teniente Alférez	OF-1 Lieutenant	Lieutenant Second lieutenant
Caballero alférez cadete	OF-D Student Officer	Officer cadet
Enlisted ranks
Suboficial mayor Subteniente	OR-9 Sergeant Major	Warrant officer class 1
Brigada	OR-8 1st Sergeant	Warrant officer class 2
Sargento primero	OR-7 Sergeant 1st Class	Staff
Sargento	OR-6 Staff Sergeant	Sergeant
Cabo mayor	OR-5 Sergeant	No equivalent
Cabo primero	OR-4 Corporal	Corporal
Cabo	OR-3 Private 1st Class	Lance corporal
Soldado de primera	OR-2 Private	Private
Soldado	OR-1 Private	No equivalent

Tiers neither force uses are hidden. An OF/OR code held by only one of the two is kept and marked — a missing tier is itself a difference in how the two hierarchies are built.