<P> World War II was the deadliest military conflict in history in absolute terms of total casualties . Over 60 million people were killed, which was about 3% of the 1940 world population (est . 2.3 billion). </P> <P> Statistics of military wounded are available for the major combatants . The tables below give a detailed country - by - country count of human losses . World War II fatality statistics vary, with estimates of total deaths ranging from 50 million to more than 80 million . The higher figure of over 80 million includes deaths from war - related disease and famine . </P>

Number of lives lost in world war 2