How Many Ounces in a Cup?
1 US cup = 8 fluid ounces. By weight it depends on the ingredient: a cup of flour weighs about 4.41 oz.
A US measuring cup holds 8 fluid ounces, so ¼ cup is 2 fl oz, ⅓ cup is about 2.67 fl oz and ¾ cup is 6 fl oz. That answer is for volume. If a recipe lists dry ingredients in ounces it means weight, and a cup of a dry ingredient rarely weighs 8 ounces.
Cups to fluid ounces
| Cups | Fl oz | Tbsp | Ml |
|---|---|---|---|
| ⅛ cup | 1 fl oz | 2 tbsp | 29.6 ml |
| ¼ cup | 2 fl oz | 4 tbsp | 59.1 ml |
| ⅓ cup | 2.67 fl oz | 5.33 tbsp (5⅓ tbsp) | 78.9 ml |
| ½ cup | 4 fl oz | 8 tbsp | 118.3 ml |
| ⅔ cup | 5.33 fl oz | 10.7 tbsp (10⅔ tbsp) | 157.7 ml |
| ¾ cup | 6 fl oz | 12 tbsp | 177.4 ml |
| 1 cup | 8 fl oz | 16 tbsp | 236.6 ml |
| 1¼ cups | 10 fl oz | 20 tbsp | 295.7 ml |
| 1½ cups | 12 fl oz | 24 tbsp | 354.9 ml |
| 2 cups | 16 fl oz | 32 tbsp | 473.2 ml |
| 2½ cups | 20 fl oz | 40 tbsp | 591.5 ml |
| 3 cups | 24 fl oz | 48 tbsp | 709.8 ml |
| 4 cups | 32 fl oz | 64 tbsp | 946.4 ml |
| 6 cups | 48 fl oz | 96 tbsp | 1,420 ml |
| 8 cups | 64 fl oz | 128 tbsp | 1,893 ml |
| 12 cups | 96 fl oz | 192 tbsp | 2,839 ml |
How many ounces a cup weighs
| Ingredient | ¼ cup | ½ cup | 1 cup |
|---|---|---|---|
| All-purpose flour | 1.1 oz | 2.2 oz | 4.41 oz |
| Whole wheat flour | 1.06 oz | 2.12 oz | 4.23 oz |
| Granulated sugar | 1.76 oz | 3.53 oz | 7.05 oz |
| Brown sugar | 1.94 oz | 3.88 oz | 7.76 oz |
| Powdered sugar | 1.06 oz | 2.12 oz | 4.23 oz |
| Butter | 2 oz | 4 oz | 8.01 oz |
| Water | 2.09 oz | 4.18 oz | 8.36 oz |
| Milk | 2.15 oz | 4.3 oz | 8.61 oz |
| Honey | 3 oz | 6 oz | 12 oz |
| Rolled oats | 0.794 oz | 1.59 oz | 3.17 oz |
| White rice | 1.63 oz | 3.26 oz | 6.53 oz |
| Almonds | 1.25 oz | 2.5 oz | 5.01 oz |
Weights and volumes on this page use these grams-per-US-cup densities: all-purpose flour 125 g; whole wheat flour 120 g; granulated sugar 200 g; brown sugar 220 g; powdered sugar 120 g; butter 227 g; water 237 g; milk 244 g; honey 340 g; rolled oats 90 g; white rice 185 g; almonds 142 g. Packing, sifting and brand can shift real results by 5–15%, so weigh when a recipe depends on precision.
Common questions
How many fl oz are in ¼ cup?
¼ cup = 2 fl oz.
How many fl oz are in ⅓ cup?
⅓ cup = 2.67 fl oz.
How many fl oz are in ¾ cup?
¾ cup = 6 fl oz.
How many fl oz are in 2 cups?
2 cups = 16 fl oz.
How many fl oz are in 6 cups?
6 cups = 48 fl oz.
How many oz are in 1 cup of all-purpose flour?
1 cup of all-purpose flour = 4.41 oz.