cups to ounces

c = ? fl oz

This converter makes instant conversions from US cups (c) to US fluid ounces (fl oz). 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 fluid ounces in a cup?

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 8 fluid ounces in a cup.

How to convert US cups to US fluid ounces

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

fl oz = 8 × c

Thus, to convert from cups to fluid ounces, multiply a value in cups by 8. For example, convert the volume of 1.5 cups of water to fluid ounces:

1.5 c = 1.5 × 8 fl oz = 12 fl oz

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