| Killed | Wounded | P.O.W. | Total | % Killed | % Total | |
| British Isles | 702,410 | 1,662,625 | 170,389 | 2,535,424 | 77.3 | 79.5 |
| Indian (British)1 | 2,393 | 2,325 | 194 | 4,912 | 0.3 | 0.2 |
| Indian (Native) | 62,056 | 66,889 | 11,070 | 140,015 | 6.8 | 4.4 |
| Canada | 56,639 | 149,732 | 3,729 | 210,100 | 6.2 | 6.6 |
| Australia | 59,330 | 152,171 | 4,084 | 215,585 | 6.5 | 6.8 |
| New Zealand | 16,711 | 41,317 | 498 | 58,526 | 1.8 | 1.8 |
| South Africa | 7,121 | 12,029 | 1,538 | 20,688 | 0.8 | 0.6 |
| Newfoundland | 1,204 | 2,314 | 150 | 3,668 | 0.1 | 0.1 |
| Other colonies | 507 | 810 | - | 1,317 | 0.1 | 0.0 |
| TOTAL | 908,371 | 2,090,212 | 191,652 | 3,190,235 |
Notes:
(1) Indian (British) are British troops serving with the Indian Army.
Source: Statistics of the Military Effort of the British Empire during the Great War 1914-1920.