Royal Navy Officer Ranks

Line Officers

• Admiral of the Fleet
• Admiral
• Vice-Admiral
• Rear-Admiral
• Commodore 1st Class
• Commodore 2nd Class
• Captain
• Commander
• Lieutenant-Commander
• Lieutenant
• Sub-Lieutenant
• Commissioned Warrant Officer

Engineering Officers

• Engineer Vice-Admiral
• Engineer Rear-Admiral
• Engineer Captain
• Engineer Commander
• Engineer Lieutenant-Commander
• Engineer Lieutenant
• Engineer Sub-Lieutenant

Medical Officers

• Medical Director-General - equivalent to Vice-Admiral
• Surgeon-General - equivalent to Rear-Admiral
• Deputy Surgeon-General - equivalent to Captain
• Fleet Surgeon - equivalent to Commander
• Staff Surgeon - equivalent to Lieutenant-Commander
• Surgeon - equivalent to Lieutenant
• Surgeon-Probationer - equivalent to Sub-Lieutenant

Paymaster Officers

• Paymaster-in-Chief - equivalent to Captain
• Fleet Paymaster - equivalent to Commander
• Staff Paymaster - equivalent to Lieutenant-Commander
• Paymaster - equivalent to Lieutenant-Commander
• Assistant Paymaster - over 4 years equivalent to Lieutenant, under 4 equivalent to Sub-Lieutenant

Military Branch	Without the curl, but with;
	Purple between stripes	Scarlet between stripes	White between stripes
Admiral of the Fleet	-	-	-
Admiral	-	-	-
Vice-Admiral	Engineer-in-Chief	Medical Director-General	-
Rear-Admiral Commodore 1st Class	Engineer Rear-Admiral	Surgeon-General	-