Armed Forces & Civilian Casualties

 

Entente
  Population (m) Number
Served (m)
Military
Killed
Civilian
Killed
Australia 4.87 0.42 53,560 -
Belgium 7.52 0.27 38,170 ~30,000
Canada 7.40 0.62 58,990 -
France 39.60 8.66 1,385,300 ~40,000
Greece 4.80 0.28 ~5,000 ~130,000
India 316.00 1.68 62,060 -
Italy 35.0 5.90 462,400 n.a.
Japan 67.2 0.80 300 -
New Zealand 1.05 0.13 16,710  
Portugal 6.00 0.20 7,220  
Romania 7.51 n.a. 219,800 265-500,000
Russia 167.00 12.00 1,800,000 2,000,000
Serbia 5.00 0.71 127,500 ~600,000
South Africa 6.00 0.23 7,120 n.a.
United Kingdom 46.40 5.70 702,410 1,386
United States 92.00 4.35 51,822 -

 

Central Powers
  Population (m) Number
Served (m)
Military
Killed
Civilian
Killed
Austria-Hungary 49.90 7.80 1,016,200 n.a.
Bulgaria 5.50 1.20 77,450 275,000
Germany 67.00 13.40 2,037,000 ~700,000
Turkey 21.30 0.99 236,000 2,000,000

 

Notes:

(1) Civilian killed ignores dead from Spanish Flu pandemic as well as famines, when possible.

(2) Turkey civilian killed is mainly Armenian

(3) Military killed on the Western Front is: France (1,300,000), U.K. (512,600), non-U.K. British Empire (124,870), U.S.A. (51,800), and Germany (1,493,000).

Sources: John Ellis & Michael Cox, The World War I Databook; Necrometrics; and Wikipedia when backed up by an official/reliable source.