How many ounces does 1 cup of water weigh?

One cup of water weighs 8 ounces because the cup is a standard measurement in the United States for liquid volume. When measuring water, it is important to note that 1 cup is defined as being equivalent to 8 fluid ounces. This correlation is based on the fact that a fluid ounce is a unit of volume used to measure liquids, and there are exactly 8 fluid ounces in 1 cup. This precise measurement is commonly used in cooking and baking, making it essential knowledge for anyone involved in culinary practices. Understanding these basic conversions is crucial for accurate recipe preparation, ensuring that the right quantity of ingredients is used for desired outcomes.