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volume conversion

How many fluid ounces are in 1 cup?

Quick answer, a live calculator, and reference values—built for fast, mobile-friendly lookups.

Main answer
1 cup = 8 fluid ounces
Result
1 cup = 8 fluid ounces

Factor: 8

There are 8 fluid ounces in 1 cup.

1 cup equals 8 fluid ounces. A cup is a common volume unit for liquids and recipe measurements. A fluid ounce is another volume unit you'll often see in kitchens and packaging.
Need the other direction?
Convert fluid ounces to cups.

Examples

  • 1 cup
    8 fluid ounces
  • 5 cups
    40 fluid ounces
  • 10 cups
    80 fluid ounces
  • 100 cups
    800 fluid ounces

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