Military Rank Equivalence

Rank Ladder Highest first

🇧🇷 Brazil · Navy	NATO equivalent	Argentina · Navy 🇦🇷
Officers
Almirante	OF-10 Marshal / General of the Army	No equivalent
Almirante de esquadra	OF-9 General	Almirante
Vice-almirante	OF-8 Lieutenant General	Vicealmirante
Contra-almirante	OF-7 Major General	Contralmirante
No equivalent	OF-6 Brigadier General	Comodoro de marina
Capitão de mar e guerra	OF-5 Colonel	Capitán de navío
Capitão de fragata	OF-4 Lieutenant Colonel	Capitán de fragata
Capitão de corveta	OF-3 Major / Commandant	Capitán de corbeta
Capitão-tenente	OF-2 Captain / 1st Lieutenant	Teniente de navío
Primeiro-tenente Segundo-tenente	OF-1 Lieutenant	Teniente de fragata Teniente de corbeta
Guarda-marinha Aspirante	OF-D Student Officer	Guardiamarina
Enlisted ranks
Suboficial	OR-9 Sergeant Major	Suboficial mayor
Primeiro-sargento	OR-8 1st Sergeant	Suboficial principal
Segundo-sargento	OR-7 Sergeant 1st Class	Suboficial primero
Terceiro-sargento	OR-6 Staff Sergeant	Suboficial segundo
Cabo	OR-5 Sergeant	Cabo principal
No equivalent	OR-4 Corporal	Cabo primero
Marinheiro	OR-3 Private 1st Class	Cabo segundo
No equivalent	OR-2 Private	Marinero primero
No equivalent	OR-1 Private	Marinero segundo

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.