Cups to Ounces [ water ]  Converter (cup to oz [ water ] )
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Cups to Ounces [water]


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Convert Ounces to Cups (oz to cup) [water]▶

Conversion Table

cups to ounces
1 cup 8.3454 oz
2 cup 16.6908 oz
3 cup 25.0362 oz
4 cup 33.3816 oz
5 cup 41.727 oz
6 cup 50.0724 oz
7 cup 58.4178 oz
8 cup 66.7632 oz
9 cup 75.1086 oz
10 cup 83.454 oz
11 cup 91.7994 oz
12 cup 100.1449 oz
13 cup 108.4903 oz
14 cup 116.8357 oz
15 cup 125.1811 oz
16 cup 133.5265 oz
17 cup 141.8719 oz
18 cup 150.2173 oz
19 cup 158.5627 oz
20 cup 166.9081 oz

How to convert

1 cup (cup) = 8.345404452 ounce (oz). Cup (cup) is a unit of Volume used in Cooking system. Ounce (oz) is a unit of Weight used in Standard system. Please note this is volume to weight conversion, this conversion is valid only for pure water at temperature 4 °C.
US oz = 28.349523125 g
US fl oz = 29.5735295625 ml (milliliters) = 29.5735295625 g (grams) of pure water at temperature 4 °C.
US cup = 8 fl oz = 236.5882365 ml (milliliters) = 236.5882365 g (grams) of pure water at temperature 4 °C.

Cups: A Unit of Volume

Cups are a unit of volume that are used to measure liquids, such as water, milk, oil, vinegar, etc. They are also used to measure some dry ingredients, such as sugar, flour, rice, etc. They are different from tablespoons and teaspoons, which are smaller units of volume. They are also different from quarts and gallons, which are larger units of volume. They are also different from barrel of oil equivalent (BOE), which is a unit of energy based on the approximate energy released by burning one barrel of crude oil.

How to Convert Cups

To convert cups to other units of volume, one can use the following formulas:

  • To convert cups to milliliters: multiply by 250
  • To convert cups to fluid ounces: multiply by 8.45
  • To convert cups to tablespoons: multiply by 16
  • To convert cups to quarts: multiply by 0.25
  • To convert cups to gallons: multiply by 0.0625
  • To convert cups to BOE: divide by 1,200
US customary cup can be abbreviated as c., = 236.5882365 millilitres = 1/16 U.S. customary gallon = 1/4 U.S. customary quart

Definition of the Ounce

The ounce is defined differently in different systems of measurement. The most common ounce is the international avoirdupois ounce, which is equal to 28.349523125 grams or 437.5 grains. This is the ounce that is used for most purposes, such as measuring food, postal items, fabric, paper and boxing gloves. The avoirdupois ounce is one-sixteenth of an avoirdupois pound, which is defined as 7000 grains.

Another ounce is the international troy ounce, which is equal to 31.1034768 grams or 480 grains. This is the ounce that is used for measuring precious metals and gems, such as gold, silver, platinum and diamonds. The troy ounce is one-twelfth of a troy pound, which is defined as 5760 grains.

A third ounce is the apothecaries’ ounce, which is also equal to 480 grains, but it is divided into eight drams instead of twelve pennyweights like the troy ounce. The apothecaries’ ounce is used for measuring medicines and drugs.

There are also other historical or regional ounces that have different values, such as the Spanish ounce, the French ounce, the Portuguese ounce, the Roman/Italian ounce, the Dutch metric ounce and the Chinese metric ounce.

How to Convert Ounces

Ounces can be converted to other units of weight by using conversion factors or formulas. Here are some examples of how to convert ounces to other units of weight in the US customary system and the SI system:

  • To convert ounces to pounds, divide by 16. For example, 32 oz = 32/16 = 2 lb.
  • To convert ounces to tons (short), divide by 32000. For example, 64000 oz = 64000/32000 = 2 tons.
  • To convert ounces to grams, multiply by 28.349523125. For example, 4 oz = 4 x 28.349523125 = 113.3980925 g.
  • To convert ounces to kilograms, multiply by 0.028349523125. For example, 8 oz = 8 x 0.028349523125 = 0.226796185 kg.
  • To convert ounces to milligrams, multiply by 28349.523125. For example, 2 oz = 2 x 28349.523125 = 56699.04625 mg.
  • To convert ounces to micrograms, multiply by 28349523.125. For example, 1 oz = 1 x 28349523.125 = 28349523.125 µg.

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