Volume
cups to fluid ounces Converter
1 cup = 8 fl oz. Enter any value and the result updates instantly.
Convert
Accuracy and rounding
For U.S. recipes that switch between cups and fluid ounces.
Metric volume units are fixed, and cups, teaspoons, tablespoons, pints, quarts, and gallons use U.S. liquid measures unless imperial is named.
For recipes, round to the nearest useful spoon, cup, or milliliter. For containers and dosing, keep more precision in fluid ounces.
How to convert cups to fluid ounces
- Type the cups value in the calculator.
- Keep cups selected as the from unit and fluid ounces selected as the to unit.
- Use the instant result, or copy it with the copy button.
cups to fluid ounces chart
| cups | fluid ounces |
|---|---|
| 1 cup | 8 fl oz |
| 2 cup | 16 fl oz |
| 5 cup | 40 fl oz |
| 10 cup | 80 fl oz |
| 25 cup | 200 fl oz |
| 50 cup | 400 fl oz |
| 100 cup | 800 fl oz |
Formula
fl oz = cup x 8
Example: 1 cup = 8 fl oz.
Source
Liter, cubic meter, and U.S. customary liquid measure relationships.
Common questions
How do I convert cups to fluid ounces?
Enter the cups value in the converter, or multiply by the factor shown in the formula. 1 cup = 8 fl oz.
What should I watch out for?
U.S. liquid units are used for cups, teaspoons, tablespoons, pints, quarts, and gallons unless the page says imperial.
Where does this volume conversion come from?
Liter, cubic meter, and U.S. customary liquid measure relationships. ConverterBase uses stable definitions and fixed conversion factors, not live or rounded market data.