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Cups to Fluid ounces

Convert cups to fluid ounces instantly. 1 cup = 8 fl oz

4

0.5 cup = 4 fluid ouncesFormula: cup × 8

Quick answers

Cups to Fluid ounces conversion table

Cups (cup)Fluid ounces (fl oz)
0.125 cup1 fl oz
0.25 cup2 fl oz
0.33333 cup2.6667 fl oz
0.5 cup4 fl oz
0.66667 cup5.3333 fl oz
0.75 cup6 fl oz
1 cup8 fl oz
Cups (cup)Fluid ounces (fl oz)
1.5 cup12 fl oz
2 cup16 fl oz
3 cup24 fl oz
4 cup32 fl oz
5 cup40 fl oz
6 cup48 fl oz
8 cup64 fl oz

Conversion formula

fluid ounces = cups × 8

Example: 0.5 cup × 8 = 4 fl oz

A US customary cup is 8 US fluid ounces, about 236.6 ml. A metric cup is 250 ml. A US fluid ounce is 1/128 of a US gallon, about 29.57 ml. It measures volume, not weight.

You may also see this conversion written as “cups to oz” or “cups in oz”.

Questions

How many fluid ounces are in one cup?

One cup is 8 fluid ounces.

How do you convert cups to fluid ounces?

Multiply by 8. The factor comes from the exact definitions of both units, so the only rounding is in the display.

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