How many ppl died during World War 2?

World War II resulted in an estimated 70 to 85 million fatalities, which was about 3-4% of the world’s population at that time. This staggering number includes military personnel and civilians, with significant casualties resulting from the Holocaust, bombings, and other wartime atrocities. The Soviet Union and China experienced the highest death tolls among the involved nations. The war remains one of the deadliest conflicts in human history.