How many people died in World War 2?
An estimated 70 to 85 million people died in World War II — about 3% of the entire world’s population in 1940. It remains the deadliest conflict in human history.
The scale of the loss
Exact totals can never be known — records were destroyed, whole regions were occupied, and many deaths went uncounted — which is why historians give a range rather than a single number. The broad consensus puts the total at 70–85 million, of which roughly 21–25 million were military deaths and a far larger 50–55 million were civilians.
That civilians outnumbered soldiers more than two to one is one of the war’s defining features. The toll came not only from combat but from strategic bombing of cities, deliberate genocide, massacres, and mass starvation and disease as food and supply systems collapsed. Around 85% of all deaths were on the Allied side; more than half of the entire total fell on just two countries — the Soviet Union and China.
The worst-hit countries
The burden was spread enormously unevenly. Some nations were reshaped for generations; others, like the United States, saw little destruction at home. Estimated total deaths by country:
| Country | Estimated deaths | Notes |
|---|---|---|
| Soviet Union | ~27 million | The highest total of any nation — roughly 8.7M military and 19M civilian. |
| China | ~15–20 million | Largely in the Second Sino-Japanese War, which merged into the wider conflict. |
| Germany | ~7 million | Mostly military losses, the majority on the Eastern Front. |
| Poland | ~5.6–5.8 million | About 17% of its pre-war population — the highest proportion of any country. |
| Japan | ~3.1 million | Military and civilian, including the atomic bombings of 1945. |
| United Kingdom | ~450,000 | Military deaths plus civilians killed in bombing. |
| United States | ~419,000 | Almost entirely military; very few civilian deaths on the mainland. |
Figures are widely cited estimates and vary between sources; the Holocaust’s victims are counted within these national totals, not in addition to them.
The Holocaust
Among the civilian deaths was the Holocaust — the systematic, state-sponsored genocide carried out by Nazi Germany, in which six million Jewish people were murdered across occupied Europe. Alongside them, the Nazi regime killed millions of others it targeted, including Soviet prisoners of war, Roma, disabled people, and political prisoners. It is remembered as one of the gravest crimes in recorded history.
Common questions
Sources
- Consensus historical estimates (Wikipedia “World War II casualties”, Britannica) — 70–85M total; military vs civilian split; ~3% of 1940 world population.
- Country figures — Soviet (Russian government ~26.6M), China (PRC ~20M), Germany (Overmans study), Japan (Japanese government ~3.1M), Poland (IPN ~5.6–5.8M).
Related
Seventy million lives or more — a toll so vast it is measured in whole nations, and still only ever estimated.