Military Rank Equivalence

Rank Ladder Highest first

🇸🇬 Singapore · Army	NATO equivalent	Australia · Army 🇦🇺
Officers
No equivalent	OF-10 Marshal / General of the Army	Field marshal
General	OF-9 General	General
Lieutenant-General	OF-8 Lieutenant General	Lieutenant general
Major-General	OF-7 Major General	Major general
Brigadier-General	OF-6 Brigadier General	Brigadier
Colonel	OF-5 Colonel	Colonel
Senior Lieutenant-Colonel Lieutenant-Colonel	OF-4 Lieutenant Colonel	Lieutenant colonel
Major	OF-3 Major / Commandant	Major
Captain	OF-2 Captain / 1st Lieutenant	Captain
Lieutenant Second Lieutenant	OF-1 Lieutenant	Lieutenant Second lieutenant
Enlisted ranks
Chief Warrant Officer Senior Warrant Officer Master Warrant Officer	OR-9 Sergeant Major	Warrant officer class 1
First Warrant Officer Second Warrant Officer	OR-8 1st Sergeant	Warrant officer class 2
Third Warrant Officer	OR-7 Sergeant 1st Class	No equivalent
Master Sergeant Staff Sergeant	OR-6 Staff Sergeant	Sergeant
First Sergeant Second Sergeant Third Sergeant	OR-5 Sergeant	Corporal
Corporal First Class Corporal	OR-4 Corporal	Lance corporal
Lance Corporal	OR-3 Private 1st Class	No equivalent
Private First Class	OR-2 Private	Private (or equivalent)
Private Recruit	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.