I posted this before. It is US-centric but it is a good "snapshot" however as I said it is not as detailed as I would like.
World War II Statistics[quotes.html]
[quotes.html]By the Numbers
America's Fight versus the Overall World Fight
Estimated number of people serving in World War II worldwide: 1.9 billion
Estimated number of deaths sustained worldwide during World War II: 72 million
Number of Americans who served in World War II: 16.1 million
Average amount of time each U.S. military serviceman served overseas during World War II: 16 months
Estimated number of U.S. soldiers, sailors, airmen, and marines killed in battle during World War II: 292,000
Who perished outside of battle during World War II: 114,000
Wounded during World War II: 672,000
Deaths, in total, sustained by U.S. forces during World War II: 405,000
Deaths as a percent of the total United States population: 0.4%
Estimated Number of Deaths Sustained by Military Forces During World War II
Polish: 123,000
French: 213,000
British: 373,000
Chinese: 1.3 million
Japanese: 1.3 million
German: 3.5 million
Russian: 11 million
Estimated Number of Civilians Killed During World War II
British: 93,000
French: 350,000
Japanese: 672,000
German: 780,000
Polish: 5.7 million
Russian: 7 million
The Holocaust
Estimated total number of European Jews killed in the Nazi Holocaust: 6 million
German Jews killed in the Holocaust: 125,000
Polish Jews killed in the Holocaust: 3 million [//go.saambaa.com]
Again … Not as complete as I'd like but it is a good "snapshot". Regardless a lot of death all the way around … sadly …