Approximately 25 billion.
25 Megaton [Mt] = 881849048739.51 Ounce [oz]
One short ton is equal to 2000 x 16 = 32000 ounces. Therefore, 4 tons is equal to 32000 x 4 = 128000 ounces.
9.67 tons = 309,440 ounces.
42,000 ounces is 1.31 tons.
518,400 ounces is 16.2 tons.
224,000 ounces is seven tons.
3 tons = 96,000 ounces
128,000 ounces is four tons.
224,000 ounces is seven tons.
3,300,000,000 ounces is 103,130 tons.
6400 ounces = 0.2 short tons