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Fluid ounces (fl oz) to cups converter

By Fidamen-Chefsolver Team | Reviewed by Ugo Candido | Updated

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

8 US fluid ounces = 1 US cup. 1 fl oz = 0.125 cups.

Quick converter

Cups
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Reference table

fl ozCups
10.125
20.25
30.375
40.50
60.75
81.00
101.25
121.50
162.00
243.00
324.00

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When to use this converter

Handy when US recipes list liquids in fl oz but your measuring jug only shows cups.

Common mistakes to avoid

  • 8 fl oz = 1 cup; memorize this to speed up fluid-oz conversions.
  • Don't confuse with weight ounces (used for flour, butter).
Quick example 12 fl oz = 1.5 cups. Perfect for most standard beverage recipes.

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