Fluid Ounces to Cups

Convert fluid ounces (fl oz) to cups (cup) instantly — with formula and reference table.

fl oz
cup

Quick answer: 1 fl oz = 0.125 cup. To convert fluid ounces to cups, multiply by fl oz × 0.125.

Converting fluid ounces to cups

This converter changes a value in fluid ounces (fl oz) into cups (cup). One fluid ounce equals 0.125 cup. One US cup equals 8 US fluid ounces, so converting fluid ounces to cups means dividing by 8. The conversion runs entirely in your browser — enter a value and the result updates instantly, in either direction.

Formula

cup = fl oz × 0.125

Example

Convert 10 fl oz to cup: 10 × 0.125 = 1.25 cup.

Fluid Ounces to Cups conversion table

Fluid Ounces (fl oz)Cups (cup)
1 fl oz0.125 cup
2 fl oz0.25 cup
3 fl oz0.375 cup
5 fl oz0.625 cup
10 fl oz1.25 cup
20 fl oz2.5 cup
25 fl oz3.125 cup
50 fl oz6.25 cup
100 fl oz12.5 cup
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How to use this converter

  1. Enter a value in the fluid ounces (fl oz) field.
  2. Read the converted value in cups (cup) below.
  3. Type into the cup field instead to convert in reverse, or use the swap button.

Frequently asked questions

How many cups is 8 fl oz?

8 US fluid ounces equals exactly 1 US cup.

How do I convert 16 fl oz to cups?

16 divided by 8 = 2 cups.

How many fl oz in a pint?

1 US pint equals 16 fluid ounces (2 cups).

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Last updated: 2026-05-27 Free · No signup · Works offline Suggest an improvement