| Royal Navy | US Navy | RAF | USAF | British Army | US Army | Royal Marines | US Marine Corps |
|---|---|---|---|---|---|---|---|
| Admiral of the Fleet | Fleet Admiral | Marshal of the Royal Air Force | General of the Air Force | Field-Marshal | General of the Army | - | - |
| Admiral | Admiral | Air Chief Marshal | General | General | General | General | General |
| Vice-admiral | Vice-admiral | Air Marshal | Lieutenant General | Lieutenant-General | Lieutenant General | Lieutenant-General | Lieutenant General |
| Rear-Admiral | Rear Admiral | Air Vice Marshal | Major General | Major-General | Major General | Major-General | Major General |
| Commodore | Commodore | Air Commodore | Brigadier General | Brigadier | Brigadier General | Brigadier | Brigadier General |
| Captain | Captain | Group Captain | Colonel | Colonel | Colonel | Colonel | Colonel |
| Commander | Commander | Wing Commander | Lieutenant Colonel | Lieutenant-Colonel | Lieutenant Colonel | Lieutenant-Colonel | Lieutenant Colonel |
| Lieutenant-Commander | Lieutenant Commander | Squadron Leader | Major | Major | Major | Major | Major |
| Lieutenant | Lieutenant | Flight Lieutenant | Captain | Captain | Captain | Captain | Captain |
| Sub-Lieutenant | Lieutenant, Junior Grade | Flying Officer | First Lieutenant | Lieutenant | 1st Lieutenant | Lieutenant | 1st Lieutenant |
| Midshipman | Ensign | Pilot Officer | Second Lieutenant | 2nd Lieutenant | 2nd Lieutenant | 2nd Lieutenant | 2nd Lieutenant |
| - | Chief Warrant Officer | - | Chief Warrant Officer | - | Chief Warrant Officer | - | Chief Warrant Officer |
| Fleet Chief Petty Officer | Warrant Officer | Warrant Officer | Chief Master Sergeant | Warrant Officer 1st Class | Warrant Officer | Warrant Officer 1st Class | Warrant Officer |
| - | Master Chief Petty Officer | - | Senior Master Sergeant | Warrant Officer 2nd Class | - | Warrant Officer 2nd Class | - |
| - | Senior Chief Petty Officer | Flight Sergeant | Master Sergeant | Staff Sergeant | Sergeant Major | Colour Sergeant | Sergeant Major |
| Chief Petty Officer | Chief Petty Officer | Chief Technician | Technical Sergeant | - | - | - | Master Gunnery Sergeant |
| Petty Officer | Petty Officer 1st Class | Sergeant | Staff Sergeant | Sergeant | Master Sergeant | Sergeant | Master Sergeant |
| - | Petty Officer 2nd Class | Corporal | Airman 1st Class | - | 1st Sergeant | - | 1st Sergeant |
| Leading Seaman | Petty Officer 3rd Class | Junior Technician | - | - | Sergeant 1st Class | - | Gunnery Sergeant |
| Able Seaman | Seaman | Senior Aircraftman | Airman 2nd Class | - | Staff Sergeant | - | Staff Sergeant |
| Ordinary Seaman | Seaman Apprentice | Leading Aircraftman | Airman 3rd Class | - | Sergeant | - | Sergeant |
| Junior Seaman | Seaman Recruit | Aircraftman | Airman Basic | Corporal | Corporal | Corporal | Corporal |
| - | - | - | - | Lance Corporal | Private 1st Class | Lance Corporal | Private 1st Class |
| - | - | - | - | Private | Private | Marine | Private |