⅓ Cup to Fluid ounces
⅓ cup equals 2.66667 fluid ounces. This works for every ingredient, because both are volume measurements.
cups
2.67fl oz
Quick:
1/3 cup = 2.67 fl oz
⅓Cups
5 ⅓Tablespoons
16Teaspoons
78.9Milliliters
How many fluid ounces in ⅓ cup?
One US cup is 16 tablespoons, 48 teaspoons, 8 fluid ounces or about 236.6 ml. So ⅓ cup is 2.66667 fluid ounces, which you can also measure as ⅓ 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 ⅓ cup without a measuring cup
Use 5 ⅓ level tablespoons (1 tablespoon = 3 teaspoons). For liquids, a measuring jug marked in ml works too: fill it to about 79 ml.
Frequently asked questions
How many fluid ounces are in ⅓ cup?
There are 2.66667 fluid ounces in ⅓ cup.
How many tablespoons is ⅓ cup?
⅓ cup is 5 ⅓ tablespoons.
How many ml is ⅓ cup?
⅓ cup is about 79 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.