How many ounces in 2/3 cup?
2/3 cup = 5.33 fl oz
10.67 Tbsp · 32 tsp · 158 mL
Measure with: 2 × 1/3 cup · or spoons only: 10 Tbsp + 2 tsp
Converter
Other cup standards
US cups: 0.667 · nutrition-label cups (240 mL): 0.657 · metric cups (250 mL): 0.631 · UK fluid ounces: 5.55
The quickest way to 2/3 cup is the 1/3 cup measure filled twice. Spooning it takes 10 Tbsp + 2 tsp, so keep that for when the 1/3 cup has gone missing.
Butter is the awkward one: 2/3 cup is a full stick plus 2 Tbsp + 2 tsp cut from a second stick, about 151 g in all. The wrapper marks make the second cut easy.
By weight, 2/3 cup of spooned all-purpose flour is about 80 g (2.82 oz) and granulated sugar about 132 g (4.66 oz). Doubling it gives 1 1/3 cups; halving it gives a single 1/3 cup.
| Cups | Fluid ounces | Tablespoons | Teaspoons | mL |
|---|---|---|---|---|
| 1/8 cup | 1 fl oz | 2 | 6 | 30 |
| 1/6 cup | 1.33 fl oz | 2.67 | 8 | 39 |
| 1/4 cup | 2 fl oz | 4 | 12 | 59 |
| 1/3 cup | 2.67 fl oz | 5.33 | 16 | 79 |
| 3/8 cup | 3 fl oz | 6 | 18 | 89 |
| 1/2 cup | 4 fl oz | 8 | 24 | 118 |
| 2/3 cup | 5.33 fl oz | 10.67 | 32 | 158 |
| 3/4 cup | 6 fl oz | 12 | 36 | 177 |
| 7/8 cup | 7 fl oz | 14 | 42 | 207 |
| 1 cup | 8 fl oz | 16 | 48 | 237 |
| 1 1/4 cups | 10 fl oz | 20 | 60 | 296 |
| 1 1/3 cups | 10.67 fl oz | 21.33 | 64 | 315 |
| 1 1/2 cups | 12 fl oz | 24 | 72 | 355 |
| 2 cups | 16 fl oz | 32 | 96 | 473 |
| 2 1/2 cups | 20 fl oz | 40 | 120 | 591 |
| 3 cups | 24 fl oz | 48 | 144 | 710 |
| 4 cups | 32 fl oz | 64 | 192 | 946 |
| 5 cups | 40 fl oz | 80 | 240 | 1,183 |
| 6 cups | 48 fl oz | 96 | 288 | 1,420 |
| 8 cups | 64 fl oz | 128 | 384 | 1,893 |
| 16 cups | 128 fl oz | 256 | 768 | 3,785 |
| Cups | Tablespoons | Teaspoons | With spoons only |
|---|---|---|---|
| 1/8 cup | 2 | 6 | 2 Tbsp |
| 1/6 cup | 2.67 | 8 | 2 Tbsp + 2 tsp |
| 1/4 cup | 4 | 12 | 4 Tbsp |
| 1/3 cup | 5.33 | 16 | 5 Tbsp + 1 tsp |
| 3/8 cup | 6 | 18 | 6 Tbsp |
| 1/2 cup | 8 | 24 | 8 Tbsp |
| 5/8 cup | 10 | 30 | 10 Tbsp |
| 2/3 cup | 10.67 | 32 | 10 Tbsp + 2 tsp |
| 3/4 cup | 12 | 36 | 12 Tbsp |
| 7/8 cup | 14 | 42 | 14 Tbsp |
| 1 cup | 16 | 48 | 16 Tbsp |
What 2/3 cup weighs
| Ingredient | 2/3 cup | How measured |
|---|---|---|
| All-purpose flour | 80 g · 2.82 oz | spooned into the cup and leveled |
| Granulated sugar | 132 g · 4.66 oz | scooped and leveled |
| Brown sugar (packed) | 142 g · 5.01 oz | packed firmly |
| Butter | 151 g · 5.33 oz | cut at the Tbsp marks on the wrapper (1 stick = 1/2 cup) |
| Rolled oats | 59 g · 2.09 oz | scooped and leveled |
| Water | 157 g · 5.55 oz | liquid measuring cup |
Questions
2/3 cup to oz?
5.33 fl oz, which is 5 1/3 fl oz.
How many tablespoons in 2/3 cup?
10 2/3 tablespoons, measured as 10 Tbsp + 2 tsp.
How much more is 2/3 cup than 1/2 cup?
1/6 cup more, which is 2 Tbsp + 2 tsp.
Sources: US customary units: NIST Handbook 44 · ingredient weights: King Arthur Baking ingredient weight chart. How we calculate.