The most powerful bomb, the B83 nuclear gravity bomb, has more than three times the explosive yield of the B61-13 at 1.2 megatons, or 1,200 kilotons.

At 1.2 megatons, or 1,200 kilotons, the B83 is the largest bomb in America’s inventory. The B83 exists to vaporize large targets, but it is older and less accurate.

The B83 is the largest nuclear bomb in America’s strategic arsenal, with a yield of 1.2 megatons. B ack on January 30, 2025, The National Interest reported on the U.S. Air Force’s long overdue ...