How to convert US cups to US fluid ounces
To convert US cups (cup) to US fluid ounces (fl oz), multiply the value in US cups by 8.
fl oz = cup × 8
Example: 10 cup = 80 fl oz.
You can also type 10 cup to fl oz into the smart calculator, or mix units: 1 cup + 1 fl oz.
US Cups to US Fluid Ounces conversion table
| US Cups | US Fluid Ounces |
|---|---|
| 0.01 cup | 0.08 fl oz |
| 0.1 cup | 0.8 fl oz |
| 0.25 cup | 2 fl oz |
| 0.5 cup | 4 fl oz |
| 1 cup | 8 fl oz |
| 2 cup | 16 fl oz |
| 3 cup | 24 fl oz |
| 4 cup | 32 fl oz |
| 5 cup | 40 fl oz |
| 6 cup | 48 fl oz |
| 7 cup | 56 fl oz |
| 8 cup | 64 fl oz |
| 9 cup | 72 fl oz |
| 10 cup | 80 fl oz |
| 12 cup | 96 fl oz |
| 15 cup | 120 fl oz |
| 20 cup | 160 fl oz |
| 25 cup | 200 fl oz |
| 30 cup | 240 fl oz |
| 40 cup | 320 fl oz |
| 50 cup | 400 fl oz |
| 60 cup | 480 fl oz |
| 75 cup | 600 fl oz |
| 100 cup | 800 fl oz |
| 250 cup | 2,000 fl oz |
| 500 cup | 4,000 fl oz |
| 1,000 cup | 8,000 fl oz |
Converting US fluid ounces back to US cups
1 fl oz = 0.125 cup. See the US Fluid Ounces to US Cups converter, or press the swap button above.
About the units
US cup (cup)
A US customary cup: 8 US fluid ounces, about 236.6 milliliters.
US fluid ounce (fl oz)
One 128th of a US gallon, about 29.57 milliliters.
Volume is the space a substance occupies. The SI unit is the cubic meter, but the liter (one cubic decimeter) is used far more often. US and imperial units share names but not sizes: a US gallon is 3.785 liters while an imperial gallon is 4.546 liters.
Questions and answers
How many US fluid ounces are in a US cup?
One US cup (cup) equals 8 US fluid ounces (fl oz).
How do I convert US cups to US fluid ounces?
To convert US cups to US fluid ounces, multiply the value in US cups by 8. The formula is fl oz = cup × 8. For example, 10 cup = 80 fl oz.
What is 10 cup in fl oz?
10 US cups is 80 US fluid ounces.
Which is bigger, a US cup or a US fluid ounce?
A US cup is bigger: 1 cup = 8 fl oz.
Is a US gallon the same as a UK gallon?
No. A US gallon is 3.785 liters and an imperial (UK) gallon is 4.546 liters, about 20% more. US and UK pints and fluid ounces differ too.
Does this cup to fl oz converter work offline?
Yes. ConvertEasy is a progressive web app: after your first visit it keeps working with no connection, and you can install it to your home screen from the browser menu.