How many ounces is a bushel?

It depends on the material being measured. Bushel is volume measurement while ounces is a weight measurement. If you know the commodity being measured, you can then figure out the ounces. For example, dry shelled field corn is 56 pounds per bushel. Take that multiplied by 16 ounces per pound and you can say that for corn, a bushel is 896 ounces.