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Convert US fluid ounce to cup

Here you can quickly calculate how many cup fit in one US fluid ounce.
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- scroll: formula · table · questions -

  • 1 fl oz = 0.125 cup
  • 1 cup = 8 fl oz

Example: US fluid ounce to cup

  • 1 US fluid ounce = 0.125 cup

US fluid ounce to cup conversion table

US fluid ounce cup
1 0.125
2 0.25
5 0.625
10 1.25
20 2.5
50 6.25
100 12.5

US fluid ounce to cup formula

To convert US fluid ounce to cup, multiply by 0.125.

1 fl oz = 0.125 cup
Example: 1 US fluid ounce = 0.125 cup

Common volume conversion mistakes

  • A fluid ounce measures volume, not weight. The US fl oz is about 29.57 ml and the imperial fl oz about 28.41 ml, and neither matches the weight ounce (28.35 g) except roughly for water. Measure liquids in milliliters to avoid the ambiguity.
  • The US recipe cup is about 237 ml, neither 250 ml nor 200 ml. Rounding up to 250 ml makes a batch about 6% too big; rounding down to 200 ml about 15% too small. Use 2.4 dl per cup, or the exact 236.6 ml when baking demands precision.

Quick US fluid ounce and cup conversion quiz

Score: 0

130 cup equals 936 US fluid ounce.

Correct answer: 130 cup = 1 040 US fluid ounce.

9.4 US fluid ounce equals 1.35 cup.

Correct answer: 9.4 US fluid ounce = 1.18 cup.

198 US fluid ounce equals 28.5 cup.

Correct answer: 198 US fluid ounce = 24.8 cup.

18.5 cup equals 148 US fluid ounce.

Correct answer: 18.5 cup = 148 US fluid ounce.

More volume conversions