You simply have to memorize the equivalents of the two.
Ounces are also commonly used for weighing small objects and in food packaging in the United States.
The nutritional information on pre-packaged foods is typically done by the ounce.
Understanding (U.S.) Cups
Cups in the U.S. are almost exclusively used for cooking.
The U.S. cup is different from the imperial cup, which is all but obsolete.
It has been replaced throughout the rest of the world by the metric cup, which is 250 ml.
How Many Ounces are in a Cup?
(Especially if you have limited measuring devices on hand.)
For the smallest quantities, you could also convert to teaspoons or tablespoons.
For example, one ounce is the equivalent of two tablespoons.
But thats another article, so on with the conversion.
Then, its just a matter of simple division.
This disparity means not all cups are equal and not all ounce to cup conversions are the same.
Dry ingredients can have wildly different properties in cooking.
Lets consider a couple of examples.
A pressed cup of flour can weigh several ounces more than a lightly-sifted cup.
2 Different foods have vastly different consistencies and, therefore, weights.
3 Foods cut differently have different consistencies and, therefore, weights.
you could chop them, dice them, mince them, or shred them.
and change the total weight of the cup.
