In the United States, a cup is a cooking measurement used for both liquid and dry ingredients. One cup is equal to 1/2 pound of a dry ingredients. In fluids, it is the same as 1/2 pint.
In American cooking, many of the measurements that equal 1 cup are the same for dry and liquid substances. For instance, 16 tablespoons equal 1 cup if either flour or milk is used. Eight ounces equals 1 cup whether it is a measurement of volume or weight. To convert to the metric scale, 1 cup of a dry ingredient substitutes for 225 grams. However, for liquids, 1 cup equals 237 milliliters, or ml.