How powerful were the 1945 atomic bombs compared to today’s nuclear weapons? (infographic)

Nagasaki and Hiroshima are the only instances nuclear weapons were used in human history against cities

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?