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.
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 un-sifted powdered sugar converts to 4.2 oz.
- One US cup of chocolate chips converts to 6 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 (bread) | 4.48 oz | 2.24 oz |
| Butter | 8 oz | 4 oz |
| Honey | 11.85 oz | 5.93 oz |
| Margarine | 8.1 oz | 4.05 oz |
| Milk | 8.64 oz | 4.32 oz |
| Oats | 3.6 oz | 1.8 oz |
| Sugar (granulated) | 7.1 oz | 3.55 oz |
| Sugar (brown) | 7.05 oz | 3.53 oz |
| Sugar (caster) | 6.68 oz | 3.34 oz |
| Sugar (powdered) | 4.2 oz | 2.1 oz |
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 (236.6mL) = 8 US fluid ounces
- 1 UK cup (284.1mL) = 10 UK fluid ounces
- 1 metric cup (250mL) = 8.799 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 |
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