| Royal Navy | Army & Royal Marines | Royal Air Force |
| Admiral of the Fleet | Field Marshal | Marshal of the Royal Air Force |
| Admiral | General | Air Chief Marshal |
| Vice-Admiral | Lieutenant-General | Air-Marshal |
| Rear-Admiral | Major-General | Air Vice-Marshal |
| Commodore (1st & 2nd class) | Brigadier | Air-Commodore |
| Captain | Colonel | Group Captain |
| Commander | Lieutenant-Colonel | Wing-Commander |
| Lieutenant-Commander | Major | Squadron Leader |
| Lieutenant | Captain | Flight-Lieutenant |
| Sub-Lieutenant and Mate | Lieutenant | Flying Officer or Observer |
| Commissioned Officer from Warrant Rank | Second Lieutenant | Pilot Officer |
