Very difficult to answer - since most countries are extremely secretive about the amount of nuclear weapons they have stockpiled.
Unclear what you mean by largest: physical size or explosive yield? For size it was the US Ivy Mike device a steel cylinder 80 feet tall and 20 feet in diameter, with 2 foot thick walls. Its yield was 10 megatons. For yield it was the USSR Tzar Bomba the cleanest hydrogen bomb ever detonated: 52 to 58 megatons, depending on method of measurement. The dirty version (never tested) was to have a yield of 100 megatons.
The most powerful nuclear weapon ever detonated was the Russian "Tsar Bomba" in 1961. (50 Megatons) It had a yield of 100 megatons of TNT, but was reduced to avoid fallout. People 100 km away would have gotten third degree burns from the heat of the explosion.
Assuming you like Dorathy from the wizard of ozzie i would say u would need about 10000000000000000002 10 megaton bombs
The yield of a nuclear weapon is its energy release, usually expressed in the weight of TNT that would release the same energy (e.g. kilotons, megatons). It depends strongly on type of bomb (fission or fusion) and many design details.
B53 nuclear bomb is nine megatons No public data is out on how large the largest megaton nuke really is but there are claims and reports that it is over 100 megatons.
2,116,437,726
1,000,000,000,000 Megatons = 35,273,961,949,580,415,205,376Ounces or 3.5275961949580415205376 x 10 to the power 22 or 100000000000000000000
1500 megatons is 3,306,933,932,800 pounds.
50
100
500000 kilograms is equal to 500000 / 1000 = 500 tonnes. One megatonne is equal to 1000000 kilograms. Therefore, 500000 kilograms is equal to 500/1000000 = 0.0005 megatons.
5 it would be very easy
megatons
There is no symbol for 5 megatons. A megaton can be abbreviated as MT but that is too easily confused with the abbreviation for metric ton.
What size of Hydrogen Bomb? How many megatons? the biggest size of hydrogen bomb can done ...........
less than 4000, more than 400, exact number classified.