US cups to US fluid ounces
Type a value in US cups to see it in US fluid ounces straight away, or type in the second box to convert back.
Loading the tool…
Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Type the value in the US cups box.
- Read the result in US fluid ounces as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
fl oz (US) = cup (US) × 8
Multiply the value in US cups by 8 to get US fluid ounces.
Example
To convert 25 cup (US) to US fluid ounces: 25 × 8 = 200 fl oz (US).
Conversion table
| US cups (cup (US)) | US fluid ounces (fl oz (US)) |
|---|---|
| 1 | 8 |
| 2 | 16 |
| 3 | 24 |
| 5 | 40 |
| 10 | 80 |
| 20 | 160 |
| 25 | 200 |
| 50 | 400 |
| 100 | 800 |
| 250 | 2,000 |
| 500 | 4,000 |
| 1,000 | 8,000 |
About the units
- US cup
- The US customary cup used in recipes equals 8 US fluid ounces, exactly 236.5882365 milliliters.
- US fluid ounce
- The US fluid ounce is 1/128 of a US gallon, exactly 29.5735295625 milliliters.
Limits and caveats
- Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
- Both unit factors are exact by their official definitions.
Questions about this tool
How many US fluid ounces are in one US cup?
1 cup (US) = 8 fl oz (US) exactly.
How do I convert US cups to US fluid ounces?
Use fl oz (US) = cup (US) × 8. For example, 25 cup (US) = 200 fl oz (US).
How many US cups are in one US fluid ounce?
1 fl oz (US) = 0.125 cup (US).
What is the difference between a US gallon and an imperial gallon?
A US gallon is 3.785411784 liters and the imperial gallon used in the UK is 4.54609 liters, about 20% larger. Check where a figure comes from before converting, since US sources mean the US gallon.
How many milliliters are in a cup?
The US customary cup used in recipes is 236.5882365 mL and the metric cup is 250 mL. US nutrition labels round the cup to 240 mL, so the figure differs slightly between sources.