Ranks of the Imperial Japanese Armed Forces

Grade	Imperial Japanese Navy		US Navy Equivalent		Grade	Imperial Japanses Army		US Army Equivalent
G5	Gensui	元帥	F.Adm.	Fleet Admiral	G5	Gensui	元帥	GA	General of the Army
G4	Taisho	大将	Adm	Admiral	G4	Taisho	大将	GEN	General
G3	Chujo	中将	VAdm	Vice Admiral	G3	Chujo	中将	LTG	Lt. General
G2	Shoho	少将	RAdm	Rear Admiral [2]	G2	Shoho	少将	MG	Major General
G1	[1]	[1]	Comd	Comodore [2]	G1	[3]	[3]	BG	Brigadier General
O6	Daisa	大佐	Capt	Captain	O6	Taisa	大佐	COL	Colonel
O5	Chusa	中佐	Cdr	Commander	O5	Chusa	中佐	LTC	Lt. Colonel
O4	Shosa	少佐	LtCdr	Lt. Commander	O4	Shosa	少佐	MAJ	Major
O3	Daii	大尉	Lt	Lieutantent	O3	Taii	大尉	CPT	Captain
O2	Chui	中尉	Lt(jg)	Lieutanent (jg)	O2	Chui	中尉	1LT	1st Lieutanent
O1	Shoi	少尉	Ens	Ensign	O1	Shoi	少尉	2LT	2nd Lieutenant
O0	Shoi-Kohosei	少尉候補生	Mid	Midshipman	O0	Shoi-Kohosei	少尉候補生	Mid	3rd Lieutenant (Cadet)
E	Heisocho	兵曹長	CWO	Chief Warrant Officer	E	Jun-i	准尉	WO	Warrant Officer
E	Joto Heiso	上等兵曹	WO	Warrant Officer	E	Socho	曹長	SGM	Sergeant Major
E	Itto Heiso	一等兵曹	PO1	1st Class Petty Officer	E	Gunso	軍曹	SGT	Sergeant
E	Nito Heiso	二等兵曹	PO2	2nd Class Petty Officer	E	Gocho	伍長	CPL	Corporal
[1] The Japanese WWII Navy did not have this rank.
[2] Up to 8 April 1943 the USN G1 pay grade was Rear Admiral (Lower Half), abbreviated as R.Adm. (LH), and the G2 pay grade was know as Rear Admiral (Upper Half), abbreviated as R.Adm. (UH).
[3] The Japanese WWII Army did not have this rank.