Formula
Convert cups to fluid ounces with:
fl oz = cup * 8
Example
1 cup = 8 fl oz
cups to fluid ounces table
Questions
How many fluid ounces are in a cup?
One cup is 8 fluid ounces. Enter any value above to convert instantly.
What is the formula to convert cups to fluid ounces?
Use fl oz = cup * 8. The calculator applies this for every value you type.
Is this conversion exact?
Yes — it uses the standard conversion factor (fl oz = cup * 8), rounded to 6 significant digits for display.