Volume · cup → fl oz
US cups to US fluid ounces
Enter any value below to convert us cups to us fluid ounces instantly.
To
1 cup = 8 fl oz
Conversion formula
How to convert cup to fl oz
fl oz = cup × 8
Multiply the us cups value by 8 to get us fluid ounces. The converter keeps extra precision internally and rounds only the displayed answer.
Converting us cups to us fluid ounces helps with cooking, fuel, containers, aquariums and liquid product specifications.
Worked example
Convert 10 cup10 cup = 80 fl oz
Calculated with the published formula. No estimated exchange rates or hidden rounding.
Common us cups to us fluid ounces values
| US cups (cup) | US fluid ounces (fl oz) |
|---|---|
| 1 cup | 8 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 |
Quick answer
How many us fluid ounces are in one us cup?
One us cup equals 8 fl oz.