|NATO rank||U.S. grade||Coast Guard||Navy||Marine Corps||Army||Air Force|
|OF-10||Spec.||Admiral of the Navy ||General of the Armies |
|O-11||Fleet Admiral||General of the Army ||General of the Air Force|
|OF-9||O-10||1 Admiral||2–8 Admirals||2–3 Generals||2–12 Generals||2–11 Generals|
|OF-8||O-9||Vice Admiral||Lieutenant General|
|OF-7||O-8||Rear Admiral (Upper Half)||Major General|
|OF-6||O-7||Rear Admiral (LH) ||Brigadier General|
|OF-1||O-2||Lieutenant, Junior Grade||First Lieutenant|
|OR-9||SEA||Senior Enlisted Advisor to the Chairman (of the Joint Chiefs of Staff)|
|MCPO of the C.G.||MCPO of the Navy||Sergeant Major of the Marine Corps||Sergeant Major of the Army||Chief Master Sergeant of the A.F.|
|E-9||Command Master Chief Petty Officer ||Sergeant Major||Master Gunnery Sergeant||Command Sergeant Major ||Command Chief Master Sergeant |
|Master Chief Petty Officer||Sergeant Major||Chief Master Sergeant|
|OR-8||E-8||Senior Chief Petty Officer||First Sergeant ||Master Sergeant||First Sergeant||Senior Master Sergeant|
|OR-7||E-7||Chief Petty Officer||Gunnery Sergeant||Sergeant First Class||Master Sergeant|
|OR-6||E-6||Petty Officer 1st Class||Staff Sergeant||Staff Sergeant||Technical Sergeant|
|OR-5||E-5||Petty Officer 2nd Class||Sergeant||Sergeant||Staff Sergeant|
|OR-4||E-4||Petty Officer 3rd Class||Corporal||Corporal||Sergeant |
|OR-3||E-3||Seaman||Lance Corporal||Private First Class||Airman First Class|
|OR-2||E-2||Seaman Apprentice||Private First Class||Private E2||Airman|
|OR-1||E-1||Seaman Recruit||Private||Private E1||Airman Basic|
- ↑ Only George Dewey has been given the rank of Admiral of the Navy, which ranks above all other U.S. admirals.
- ↑ Only George Washington and John Pershing have been given the rank of General of the Armies, which ranks above all other U.S. generals.
- ↑ U.S. military policy stated that these ranks are only to be used in time of war where the commanding officer must be equal to or of higher rank than those commanding armies from another nation.
These ranks were only bestowed nine times in the twentieth century (during World War II).
- ↑ General of the Army is equivalent to the European Field Marshal.
- ↑ The number of star-rank officers is limited by law to (Navy & Coast Guard: 216, USMC: 80, Army: 302, Air Force: 279).
Three & four star ranks are further limited to 16.3% of the total, with four-star ranks further limited to 25% of that 16.3%, resulting in the limits shown in the table.
- ↑ The Coast Guard is led by its one full Admiral who has the title Commandant of the Coast Guard.
- ↑ The USMC is led by one of its 2–3 full Generals who has the title Commandant of the Marine Corps.
- ↑ Rear Admiral (LH), was called Commodore until 1899. Then Commodore Admiral in 1982, just Commodore in 1983, and then back to Rear Admiral (LH) in 1985.
- ↑ The Senior Enlisted Advisor positions (SEAC, MCPON, MCPOCG, SMMC, SMA, & CMSAF) are unique billets/ranks and have a VIP status/precedence above the three-star (O-9) ranks, and below the four-star ranks (O-10).
- Sergeant Major of the Marine Corps (SMMC), created on 1957-May-23.
- Sergeant Major of the Army (SMA), created on 1966-Jul-11.
- Master Chief Petty Officer of the Navy (MCPON), created on 1967-Jan-13.
- Chief Master Sergeant of the Air Force (CMSAF), created on 1967-Apr-03.
- Master Chief Petty Officer of the Coast Guard (MCPOCG), created on 1969-Aug-27.
- Senior Enlisted Advisor to the Chairman (SEAC), created on 2005-Oct-01.
- ↑ A Command Master Chief Petty Officer (CMCPO) is the senior enlisted advisor to the commanding officer of a capital ship.
Also at this rate there are Force / Fleet Command Master Chief Petty Officers (FORMC & FLTMC) who are the CMCs for their respective squardrons or fleets.
A CMCPO wears silver stars, while FORMC & FLTMC wear gold stars.
- ↑ A Command Sergeant Major (created 1968) is the senior enlisted adviser to the commanding officer of a battalion (or larger unit).
- ↑ A Command Chief Master Sergeant (created 1998-Nov) is the senior enlisted adviser to the commanding officer of a large base/unit.
- ↑ In the U.S.M.C. First Sergeants and Master Sergeants are equivalent ranks, with the former given command expertise and later promoted to Sergeant Major, and the latter given technical expertise and later promoted to Master Gunnery Sergeant.
- ↑ The U.S. Air Force phased out the rank of Sergeant in the 1990s. Sergeants ranked above Senior Airman, even though both were grade E-4.
Starfleet ranks are the same as U.S. Navy rates, with the following changes.
- The billet Commander-in-Chief (CinC) is held by the most senior Fleet Admiral, making it equivalent to the U.S. Chairman of the Joint Chiefs of Staff.
- At the OR-9/E-9 grade, only a Master Chief Petty Officer has been shown.
- If Command Master Chief Petty Officers (CMCPO) do exist, the Enterprise would have had only one, but they would have worked closely with the captain on crew related matters, and we would probably have seen them by now.
- The UFP could have multiple Master Chief Petty Officers of the Fleet (MCPOF), equivalent to the MCPON, with one per Fleet Admiral.
- The UFP could further have a single Master Chief Petty Officer of Starleet (MCPOS), equivalent to the SEAC, attached to the CinC.
- The three seaman rates are renamed as the ranks: Crewman 1st, 2nd, and 3rd class.