Convert between cups and dry or fluid ounces for a wide range of ingredients, and find out how many ounces there are in a cup.
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How many dry ounces are in a cup?
A cup of flour measures about 4.4 oz, a cup of sugar about 7.1 oz, and a cup of butter about 8 oz.
- One US cup of all purpose flour converts to 4.4 oz
- One US cup of granulated sugar converts to 7.1 oz
- One US cup of unsifted powdered sugar converts to 4.2 oz
- One US cup of chocolate chips converts to 6.0 oz
When converting between cups and dry ounces (oz), it's important to remember that the cup is a unit of volume and the dry ounce (oz) is a unit of weight. This means that the density of the substance needs to be factored into the conversion. As an example, a cup of flour weighs less than a cup of butter (4.4 ounces versus 8 ounces).
1 cup to dry ounces for ingredients
| Ingredient | 1 Cup (US) | 1/2 Cup (US) |
|---|
| Flour (all purpose) | 4.4 oz | 2.2 oz |
| Flour (pastry) | 3.8 oz | 1.9 oz |
| Butter | 8 oz | 4 oz |
| Honey | 11.96 oz | 5.98 oz |
| Margarine | 8.1 oz | 4.05 oz |
| Milk | 8.64 oz | 4.32 oz |
| Oats | 3.56 oz | 1.78 oz |
| Sugar (granulated) | 7.1 oz | 3.55 oz |
| Sugar (brown) | 7.56 oz | 3.78 oz |
| Sugar (confec.) | 4.48 oz | 2.24 oz |
| Sugar (powdered) | 4.2 oz | 2.1 oz |
A full list of ingredient conversions is available on the baking ingredient conversions page. You can also convert cups to grams here.
How many fluid ounces are in a cup?
In the United States, one cup holds 8 fluid ounces. In the United Kingdom, one cup holds 10 UK fluid ounces.
- 1 US cup (236.6 mL) = 8 US fluid ounces
- 1 UK cup (284.1 mL) = 10 UK fluid ounces
- 1 metric cup (250 mL) = 8.798 UK fluid ounces
US cups to fluid ounces chart
| Cups (US) | Ounces (fluid) | Tablespoons (US) |
|---|
| 1 cup | 8 fl oz | 16 tbsp |
| 3/4 cup | 6 fl oz | 12 tbsp |
| 2/3 cup | 5.3 fl oz | ~10.6 tbsp |
| 1/2 cup | 4 fl oz | 8 tbsp |
| 1/3 cup | 2.7 fl oz | 5.3 tbsp |
| 1/4 cup | 2 fl oz | 4 tbsp |
Cups to fluid ounces infographic
This infographic / cheat-sheet shows the conversions for US cups to ounces, tablespoons, teaspoons and milliliters. Note that all figures are rounded to the nearest whole number.
| 🥛 CUP |
Fluid oz |
Tablespoons |
Teaspoons |
Milliliters |
| 1 | 8 | 16 | 48 | 237 |
| 3/4 | 6 | 12 | 36 | 177 |
| 2/3 | 5 | 11 | 32 | 158 |
| 1/2 | 4 | 8 | 24 | 118 |
| 1/3 | 3 | 5 | 16 | 79 |
| 1/4 | 2 | 4 | 12 | 59 |
| 1/6 | 1 | 2 | 6 | 30 |
| 1/16 | 0.5 | 1 | 3 | 15 |
Converting between other cooking units
To convert between other cooking units such as grams, pounds, ounces, tablespoons, teaspoons, litres and more, give the cooking converter a try. You can also convert directly between cups and mL, and ounces and mL.
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