How big was the atom bomb in hiroshima?

Answer 1

Your question could be taken one of two different ways.

Are you asking about the physical size? Ten feet long, and five feet diameter (the largest that could fit in a B-29 bomb bay).

Or are you asking about the POWER of the bombs?

Equal to many TONS of TNT explosive. The largest man-made explosion up till that time, in world history.

The most common meaning of your question is the size of the explosion that they caused.

The Little Boy bomb dropped on Hiroshima had a nominal yield of about 18 kilotons of TNT (equal to 18,000 tons of TNT explosive).

The Fat Man bomb dropped on Nagasaki had a nominal yield of about 21 kilotons.

Answer 2

The USA dropped thouands of bombs on mainland Japan and its outlying islands. These mostly consisted of normal ordinance, but later a firebombing strategy was used, resulting in widespeard destruction of more than 60 cities in Japan. The bombs also included the only two nuclear weapons ever used in an act of war, through the destruction of Hiroshima and Nagasaki.

Answer 3

It was 18 foot by 3 foot

weighted about 13,530 pounds

Answer 4

They have been built in sizes from smaller than an 11 inch diameter sphere to as big as an 80 foot tall by 20 foot diameter cylinder. Almost any size is possible, depending mostly on purpose.

Answer 5

60 inches diameter, 120 inches long. Yield 22 KTons.

Answer 6

The actual atomic bomb was 3 meters in length and 0.7 meters in diameter. It weighed 4 tons. The atomic cloud reached an altitude of 17 000 meters.

Answer 7

Little boy was a uranium-based nuclear bomb which exploded with energy between 13 and 18 kilotons of TNT.

Answer 8

The MK-I Little Boy atomic bomb was 10 feet long, 28 inches in diameter, and weighed 9700 pounds.

Answer 9

Little Boy was the codename for the type of atomic bomb dropped on Hiroshima on August 6, 1945 by the Boeing B-29 Superfortress Enola Gay. The weight was 9,700 pounds which had 16 kt.