VOLUME CONVERSION
US fluid ounce to US cup.
Convert us fluid ounce (fl oz (US)) to us cup (cup (US)), with the math explained.
1 fl oz (US) = 0.125 cup (US)
US and UK gallons, pints, and fluid ounces are different sizes. A metric cup is 250 mL; a US customary cup is 236.5882365 mL.
THE MATH, MADE SIMPLE
How to convert us fluid ounce to us cup
Multiply your us fluid ounce value by 0.125 to get the equivalent in us cup. Both units are normalized through the liter.
cup (US) = fl oz (US) × 0.12510 fl oz (US) = 1.25 cup (US)
Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.US and UK gallons, pints, and fluid ounces are different sizes. A metric cup is 250 mL; a US customary cup is 236.5882365 mL.
QUICK REFERENCE
fl oz (US) to cup (US) conversion table
| US fluid ounce (fl oz (US)) | US cup (cup (US)) |
|---|---|
| 1 fl oz (US) | 0.125 cup (US) |
| 2 fl oz (US) | 0.25 cup (US) |
| 5 fl oz (US) | 0.625 cup (US) |
| 10 fl oz (US) | 1.25 cup (US) |
| 20 fl oz (US) | 2.5 cup (US) |
| 50 fl oz (US) | 6.25 cup (US) |
| 100 fl oz (US) | 12.5 cup (US) |
| 500 fl oz (US) | 62.5 cup (US) |
| 1,000 fl oz (US) | 125 cup (US) |
About the us fluid ounce
The us fluid ounce (fl oz (US)) is a unit of volume. One us fluid ounce equals 0.0295735295625 liter (base unit) in this calculator.
All us fluid ounce conversionsAbout the us cup
The us cup (cup (US)) is a unit of volume. One us cup equals 0.2365882365 liter (base unit) in this calculator.
All us cup conversionsCommon questions
What is 1 fl oz (US) in cup (US)?
One us fluid ounce equals 0.125 cup (US). Use the formula above for other values.
Why might another calculator show a different last digit?
Calculators may round at different stages or use different unit conventions. We keep full JavaScript numeric precision during calculation and round only for display. Choose up to 15 significant digits. Check US versus UK units and the notes for this category.
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