Allied soldiers killed:
- Australia: 23,400
- Brazil: 943
- Canada: 37,500
- China: 2,050,000
- France and Free French Forces: 210,000
- Italy (from 1943): 17,500
- New Zealand: 10,000
- South Africa: 6,840
- Soviet Union: 13,700,000
- United Kingdom: 264,000
- United States: 292,000
Soldiers killed in attacked countries:
- Albania: 20,000
- Belgium: 12,000
- Bulgaria (from 1944): 1,000
- Czechoslovakia: 46,000
- Denmark: 1,800
- Finland: 82,000
- Ethiopia: 5,000
- Greece: 88,300
- India: 24,300
- Luxembourg: 4,000
- Mongolia: 3,000
- Netherlands: 7,900
- Norway: 3,000
- Philippines: 27,000
- Poland: 123,000
- Romania (from 1944): 5,000
- Yugoslavia: 300,000
Axis Soldiers Killed:
Civilians killed:
- Albania: 10,000
- Austria: 125,000
- Belgium: 76,000
- Bulgaria: 10,000
- China: 7,750,000
- Czechoslovakia: 294,000
- Denmark: 2,000
- Ethiopia: 5,000
- Finland: 2,000
- France: 350,000
- Germany: 1,600,000
- Greece: 325,000
- Hungary: 290,000
- India: 25,000
- Italy: 153,000
- Japan: 672,000
- Netherlands: 200,000
- Norway: 7,000
- Philippines: 91,000
- Poland: 5,680,000
- Romania: 200,000
- Soviet Union: 7,000,000
- United Kingdom: 92,700
- United States: 6,000
- Yugoslavia: 1,200,000