Nuclear Weapons
Nuclear weapons in 1945 and 2020 in comparison
August 6 marks the day the U.S. dropped an atomic bomb named "Little Boy" on the Japanese city of Hiroshima. Three days later, Nagasaki was also the target of an atomic bomb named "Fat Man". These remain the only wartime nuclear attacks in history. How do those two weapons compare to the most powerful warheads in the world today?
Description
This chart shows the estimated yield of nuclear weapons in kilotons, TNT equivalent.
Estimated total populations, fatalities, and injuries during the atomic bombings of Hiroshima and Nagasaki from August 6-9, 1945
Strength of the most powerful nuclear weapons ever tested since 1945
Estimated height at which the nuclear bombs were dropped and detonated over Hiroshima and Nagasaki in 1945 (in feet)
Estimated number of nuclear warheads by country in each year from 1945 to 2026
Number of nuclear warheads worldwide from 1945 to 2026
United States spending on the Manhattan Project and selected weapon types during the Second World War from 1941 to 1945 (in billion U.S. dollars)
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