The weapons we’ve built after the first atomic bombs are so strong that you can basically use Hiroshima as a unit of measurement. The largest nuclear explosion in human history, the Tsar Bomba, detonated with a force of 50 megatons or the power of 3,333 Hiroshimas.
The Russians had another bomb planned that would have been double the force of the Tsar Bomba at 100 megatons (and 6,666 times the force of Hiroshima) but luckily they never tested it. I mean, the Tsar Bomba was already as scarily powerful as it can get, since it almost destroyed the plane that dropped it and shattered windows as far as Norway and Finland. (The bomb was tested at Novaya Zemlya in Northern Russia).
Even something like the B83 bomb (which is the largest nuke in the US arsenal) explodes with a mushroom cloud taller than where commercial airlines fly. The true scale of nuclear weapons is really something, man. Learn more about it with this video by RealLifeLore, which also shows what kind of damage these nukes would do if they were dropped on New York City.