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Cups to Ounces Converter
1 US cup equals 8 fluid ounces. Convert any cup amount to fluid ounces in one step.
Quick:
1 cup = 8 fl oz
1Cups
16Tablespoons
48Teaspoons
237Milliliters
How many ounces are in a cup?
One cup contains 8 fluid ounces. Multiply cups by 8 to get fluid ounces. This is handy when a drink bottle, can or measuring jug is labeled in ounces but your recipe uses cups.
For dry ingredients, weight in ounces depends on the ingredient. One cup of flour weighs about 4.4 oz, while one cup of sugar weighs about 7 oz. Use our cups to grams converter for those.
fluid ounces = cups × 8
Example: ¾ cup × 8 = 6 fl oz
Example: ¾ cup × 8 = 6 fl oz
Cups to Ounces chart
| Cups | Fluid ounces |
|---|---|
| ⅛ cup | 1 fl oz |
| 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 |
| 1 ½ cups | 12 fl oz |
| 2 cups | 16 fl oz |
| 3 cups | 24 fl oz |
| 4 cups | 32 fl oz |
Frequently asked questions
How many ounces in 1 cup?
1 cup is 8 fluid ounces.
How many ounces is 2 cups?
2 cups is 16 fluid ounces.
How many ounces is ½ cup?
½ cup is 4 fluid ounces.
How many ounces is 4 cups?
4 cups is 32 fluid ounces, which is 1 quart.
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Last updated: November 2026. Results are for cooking and baking and are rounded for everyday kitchen use.