⅔ Cup to Fluid ounces
⅔ cup equals 5.33333 fluid ounces. This works for every ingredient, because both are volume measurements.
cups
5.33fl oz
Quick:
2/3 cup = 5.33 fl oz
⅔Cups
10 ⅔Tablespoons
32Teaspoons
158Milliliters
How many fluid ounces in ⅔ cup?
One US cup is 16 tablespoons, 48 teaspoons, 8 fluid ounces or about 236.6 ml. So ⅔ cup is 5.33333 fluid ounces, which you can also measure as ⅔ cup.
Cups to ounces chart
| Cup amount | Fluid ounces |
|---|---|
| ¼ cup | 2 fl oz |
| ⅓ cup | 2.67 fl oz |
| ½ cup | 4 fl oz |
| ⅔ cup | 5.33 fl oz |
| ¾ cup | 6 fl oz |
| 1 cup | 8 fl oz |
| 2 cups | 16 fl oz |
How to measure ⅔ cup without a measuring cup
Use 10 ⅔ level tablespoons (1 tablespoon = 3 teaspoons). For liquids, a measuring jug marked in ml works too: fill it to about 158 ml.
Frequently asked questions
How many fluid ounces are in ⅔ cup?
There are 5.33333 fluid ounces in ⅔ cup.
How many tablespoons is ⅔ cup?
⅔ cup is 10 ⅔ tablespoons.
How many ml is ⅔ cup?
⅔ cup is about 158 ml.
Is a US cup the same as a metric cup?
No. A US cup is 236.6 ml and a metric cup is 250 ml, about one tablespoon more.
Related conversions
Last updated: November 2026. Values use the US cup (236.6 ml) and the spoon-and-level method for dry ingredients.