US fluid ounces to US cups
Type a value in US fluid ounces to see it in US cups straight away, or type in the second box to convert back.
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How to use it
- Type the value in the US fluid ounces box.
- Read the result in US cups as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
cup (US) = fl oz (US) × 0.125
Multiply the value in US fluid ounces by 0.125 to get US cups.
Example
To convert 25 fl oz (US) to US cups: 25 × 0.125 = 3.125 cup (US).
Conversion table
| US fluid ounces (fl oz (US)) | US cups (cup (US)) |
|---|---|
| 1 | 0.125 |
| 2 | 0.25 |
| 3 | 0.375 |
| 5 | 0.625 |
| 10 | 1.25 |
| 20 | 2.5 |
| 25 | 3.125 |
| 50 | 6.25 |
| 100 | 12.5 |
| 250 | 31.25 |
| 500 | 62.5 |
| 1,000 | 125 |
About the units
- US fluid ounce
- The US fluid ounce is 1/128 of a US gallon, exactly 29.5735295625 milliliters.
- US cup
- The US customary cup used in recipes equals 8 US fluid ounces, exactly 236.5882365 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 cups are in one US fluid ounce?
1 fl oz (US) = 0.125 cup (US) exactly.
How do I convert US fluid ounces to US cups?
Use cup (US) = fl oz (US) × 0.125. For example, 25 fl oz (US) = 3.125 cup (US).
How many US fluid ounces are in one US cup?
1 cup (US) = 8 fl oz (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.