ounces to cups

fl oz = ? c

This converter makes instant conversions from US fluid ounces (fl oz) to US cups (c). It also provides the conversion steps. To use the converter, please provide a value in the input field. The converter will begin making conversions as the values are being typed in.

How many cups in a fluid ounce?

Both fluid ounce and cup are units of volume in the United States (US) customary systems of measurement that are still being widely used. In the US customary systems, a cup is defined to have 8 fluid ounces. Based on this definition, there are = 0.125 cups in a fluid ounce.

How to convert fluid ounces to cups

Based on the definition of 1 cup being exactly 8 fluid ounces in the US customary system, the fluid ounce to cup conversion formula is:

c =
fl oz

Thus, to convert from fluid ounces to cups, divide a value in fluid ounces by 8. For example, convert the volume of 20 fluid ounces of milk to cups:

20 fl oz =
c = 2.5 c
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