how many ounces are in a cup

A cup is a unit of volume measurement used mostly in cooking. One cup is equivalent to 8 fluid ounces. This means that there are 8 ounces in a cup. However, a cup can also be a measure of weight and in this case it is equivalent to 6 ounces. So, depending on the context, there can be either 8 or 6 ounces in a cup. For cooking purposes, it is usually 8 ounces per cup.