But would that be the same for 1 cup of popped popcorn? No. Dry ingredients that are measured in ounces refers to weight.įor example, I know that 1 cup of all-purpose flour is equal to 4.25 dry ounces. How many dry ounces are in a cup? That’s a trick question because the answer isn’t just plain and simply straightforward for dry ingredients. Remember that fluid ounces measure the volume. How many fluid ounces are in a cup? For liquid ingredients such as water, milk, cooking oil, and so forth, there are always 8 fluid ounces in a cup. We’ll show both liquid and dry conversions. In the following section we’ll go deeper into understanding how many ounces are in a cup. How Many Ounces in a Cup: Liquid and Dry Conversions And that measurement conversion is true across the board for liquid ingredients, there are always 8 fluid ounces in a cup. For example, there are 8 fluid ounces in a cup. On the other hand, fluid ounces are used to measure the volume of liquid ingredients. And while we’re talking about flour, you might like to know that 1 cup of flour weighs about 4.25 ounces. For example, flour would be measured in ounces. The difference between ounces and fluid ounces is that ounces are used to measure the weight of dry ingredients. What is the Difference Between Ounces (oz.) and Fluid Ounces (fl. The amount ounces in a cup varies according to the ingredient. In the example of dry ingredients however, a cup can be used as a measurement to measure the dry ingredients, and ounces refer to weight, rather than volume. And there are always 8 fluid ounces in a cup. What is the difference between an ounce and a cup? For liquids, both a cup and fluid ounces can be used to measure volume. Fluid ounces are used to measure the volume of liquids. Dry ounces are used to measure weight.įor liquid ingredients, an ounce is 1/8 th of a cup. One ounce is a small amount of something.įor dry ingredients, an ounce is 1/16 th of a pound. It is mostly used in the United States and the United Kingdom, as one of the many measurements of volume used.What does an ounce mean? An ounce is a small unit of measurement that can be used to measure the volume of a liquid or the weight of a dry ingredient. After the adoption of the international inch in 1959, the US fluid ounce became equal to exactly 29.5735295625 mL.Ĭurrent use: As the name indicates, the fluid ounce is typically used as a measurement of liquid volume. The United States fluid ounce was initially based on the wine gallon used in England prior to 1824. The imperial gallon's definition was later changed to be equal to 4.54609 liters, making the imperial fluid ounce equal to exactly 28.4130625 mL. In 1824, the imperial gallon was defined as the volume of ten pounds of water at a temperature of 16.7☌. History/origin: The fluid ounce was originally based on the volume occupied by one ounce (weight) of a given liquid such as wine or water, thus varying based on the system being used. The imperial fluid ounce is 1/20 of an imperial pint, and 1/160 of an imperial gallon, which is equal to 28.4 mL. The US fluid ounce is 1/16 of a US fluid pint, and 1/128 of a US liquid gallon, which is equal to 29.57 mL. Fluid ounceĭefinition: A fluid ounce (symbol: fl oz) is a unit of volume in the imperial and United States customary systems of measurement. Standardized measuring cups are used instead. Actual drinking cups can vary significantly in terms of size and are generally not a good representation of this unit. customary teaspoons.Ĭurrent use: The cup is typically used in cooking to measure liquids and bulk foods, often within the context of serving sizes.
One United States customary cup is equal to 236.5882365 milliliters as well as 1/16 U.S. The metric cup is defined as 250 milliliters. Definition: A cup is a unit of volume in the imperial and United States customary systems of measurement.
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