How Many People Died in World War 2?

The best modern estimates for the deadliest conflict in human history, and why every figure is a range

World War II killed an estimated 70 to 85 million people between 1939 and 1945, which was roughly 3% of the world's population at the time, and the figure is a range rather than a single number because most of the dead were never counted individually. Wikipedia's summary of the scholarly literature puts military deaths from all causes at about 21 to 25 million and civilian deaths at about 50 to 55 million, and adding the low ends to each other and the high ends to each other produces the 70 to 85 million total that is most often quoted. Some overview accounts give a narrower headline figure of 60 to 75 million, which is the same evidence presented more conservatively.

The war's dead were mostly civilians. That is the single most important thing the numbers say, and it is the reason the totals are so uncertain. Soldiers were enlisted, paid, and in most armies recorded when they died. Civilians who starved in a besieged city, died of typhus in a camp, were shot in a village, or vanished during a forced deportation left no comparable paper trail, and the states that might have counted them were often the states that killed them or had collapsed entirely.

So the honest answer to the question is a band, not a point. What is not uncertain is the shape of the loss: the Soviet Union and China absorbed the largest absolute tolls, Poland and Belarus lost the largest share of their populations, and six million Jews were murdered in a genocide carried out alongside the fighting rather than as a by-product of it.

Why the total is a range and not a number

Four separate problems push the figure apart. The first is definitional: does a death count if it happened in 1946 from a wound or from famine caused by the war? Different tallies draw the line in different places, and the choice moves the total by millions. The second is the treatment of indirect deaths. Famine and disease killed enormous numbers in China, Bengal, the occupied Soviet Union, and Japanese-occupied Southeast Asia, and whether those are war deaths is a judgement rather than a fact.

The third problem is that the record keepers were destroyed. Poland's prewar civil registers, Soviet local archives in the occupied zone, and Chinese provincial records were burned, looted, or simply abandoned. Historians reconstruct losses instead from demographic balance, comparing a prewar population estimate with a postwar one and attributing the shortfall to the war, which means the answer inherits the error in both estimates plus the error in the assumed birth rate.

The fourth is politics. National death tolls have been raised and lowered by governments for decades, because a larger toll can serve a claim about suffering, sacrifice, or reparations, and a smaller one can serve a claim about responsibility. The Soviet official figure moved from seven million under Stalin to twenty million under Khrushchev to around 26 to 27 million after the archives opened, and none of those revisions were driven purely by new counting.

Military and civilian deaths

The conventional split is about 21 to 25 million military deaths and about 50 to 55 million civilian deaths. Roughly two out of every three people killed in the war were not in uniform, which inverts the pattern of the First World War, where military deaths were the clear majority.

Military deaths themselves are not all battle deaths. A large share were prisoners of war who died in captivity, and the largest single group of those were Soviet prisoners in German hands, whom the United States Holocaust Memorial Museum numbers at around 3.3 million killed. Deaths from disease, exposure, and accident are folded into most national military figures without being separable from them.

The civilian figure absorbs almost all the uncertainty in the total. It contains the Holocaust, the strategic bombing of Europe and Japan, the atomic bombings, the siege of Leningrad, the reprisal massacres across occupied Europe and Asia, and famines that killed on a scale comparable with the fighting. The National WWII Museum's summary table uses a rounder set of numbers, about 15 million battle deaths and about 45 million civilian deaths, and it explicitly notes that Chinese civilian deaths alone may run far above the figures usually printed.

The Soviet Union, China, Germany and Poland

The Soviet Union lost the most people of any combatant. The figure most commonly used since the Soviet archives opened is around 26 to 27 million dead within postwar borders, of whom something like 8 to 9 million died of famine and disease rather than in combat. Soviet military deaths alone are put at roughly 8.7 to 11.4 million in the range the sources give, a band wide enough to contain the entire military loss of most other belligerents.

China's toll is the least precisely known of the major ones. The People's Republic has used a figure of around 20 million dead, and Western tallies typically give a range of roughly 14 to 20 million, with some higher-end estimates going well beyond that once famine is fully counted. The war in China ran from 1937 rather than 1939, and where a tally begins its clock changes the answer.

Germany's military dead and missing are usually estimated at about 5.3 million, with total German losses including civilians commonly given as roughly 6.9 to 7.4 million depending on whether deaths among ethnic Germans expelled from eastern Europe after the war are included. Poland lost an estimated 5.6 to 6 million people depending on the table used, one of the highest proportional losses of any country. Only around 240,000 of those were military deaths. Poland is the clearest case in the war of a country destroyed from the civilian population inward.

The Holocaust within the total

The United States Holocaust Memorial Museum states that six million Jewish men, women, and children were murdered by the Nazi German regime and its allies and collaborators. That figure is unusually firm by the standards of this page, because it rests on German administrative records, transport lists, ghetto registers, and postwar community-by-community reconstruction rather than on demographic subtraction alone.

The Holocaust is counted inside the civilian total, not alongside it. The same museum gives figures for other groups murdered in the Nazi campaign of persecution: around 3.3 million Soviet prisoners of war, around 1.8 million non-Jewish Polish civilians, at least 250,000 and possibly as many as 500,000 Roma, more than 310,000 Serb civilians, and 250,000 to 300,000 people with disabilities.

We flag this because the Holocaust figure is the one most often lifted out of context. Six million is the number of Jews murdered. It is not the total number of people the Nazi state killed, and it is not a separate addition to the war's 70 to 85 million.

How to use these numbers well

If you need one figure, use 70 to 85 million and say it is an estimate. If you need a single midpoint for a chart, roughly 75 million is defensible, but label it. Presenting any exact figure such as 72,466,000 as fact is the one thing the evidence does not support, and precise-looking totals of that kind circulate widely without any source able to justify the last five digits.

Percentages are often more useful than totals. About 3% of the world's population died, but Poland lost something close to one person in six, Belarus lost a comparable or larger share, and the Soviet Union lost roughly one in seven. The United States and the United Kingdom each lost well under 1%. The war was not experienced at anything like the same intensity across the countries that fought it, and a global total hides that completely.

Finally, treat any tally that reports only battle deaths as answering a different question. Battle deaths are perhaps a fifth of the total. A history of the Second World War that stops at the fighting has left out most of the people who died in it.

Frequently asked questions

How many people died in World War 2?

An estimated 70 to 85 million people, roughly 3% of the world's population in 1940. Some overview accounts give a more conservative 60 to 75 million. Military deaths are usually put at about 21 to 25 million and civilian deaths at about 50 to 55 million.

Why is the World War 2 death toll a range instead of an exact number?

Most of the dead were civilians, and civilian deaths were largely uncounted. Record-keeping systems were destroyed in Poland, the occupied Soviet Union, and China, so historians estimate losses by comparing prewar and postwar populations. Different tallies also make different choices about whether to count famine, disease, and postwar deaths from war injuries.

Which country lost the most people in World War 2?

The Soviet Union, with around 26 to 27 million dead within its postwar borders, including roughly 8 to 9 million from famine and disease. China is second, with estimates commonly running from about 14 to 20 million. By share of population, Poland and Belarus suffered the heaviest losses.

Were more soldiers or civilians killed in World War 2?

Civilians, by roughly two to one. That is the reverse of the First World War, where military deaths were the majority. The civilian total includes the Holocaust, strategic bombing, sieges, massacres, and war-driven famine.

Is the six million figure for the Holocaust included in the total?

Yes. The six million Jews murdered in the Holocaust are counted within the civilian death total, not added to it. The United States Holocaust Memorial Museum also gives figures for other groups murdered by the Nazi regime, including around 3.3 million Soviet prisoners of war and around 1.8 million non-Jewish Polish civilians.

Further reading

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Explore related events on the timeline

• Hiroshima & Nagasaki on the interactive timeline

Related guides

• Best Books on World War II
• Best Books on the Holocaust
• Best Books on World War I

Sources consulted

• Wikipedia, 'World War II casualties'
• United States Holocaust Memorial Museum, 'Documenting Numbers of Victims of the Holocaust and Nazi Persecution'
• The National WWII Museum, 'Research Starters: Worldwide Deaths in World War II'
• Open Library record, Timothy Snyder, Bloodlands

Researched with AI and verified against mainstream scholarship and the cited sources on this page. See our methodology and corrections policy.

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