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Fluid Ounces to Cups

Convert fluid ounces (fl oz) to cups (cup) — instant and accurate

1 fl oz = 0.125 cup  ·  To convert fluid ounces to cups, multiply by 0.125.

0.125 cup

Fluid Ounces to Cups Conversion Table

Fluid OuncesCups
0.25 fl oz0.03125 cup
0.5 fl oz0.0625 cup
1 fl oz0.125 cup
2 fl oz0.25 cup
3 fl oz0.375 cup
4 fl oz0.5 cup
5 fl oz0.625 cup
6 fl oz0.75 cup
8 fl oz1 cup
10 fl oz1.25 cup
16 fl oz2 cup
25 fl oz3.125 cup
50 fl oz6.25 cup
100 fl oz12.5 cup
250 fl oz31.25 cup
500 fl oz62.5 cup
1000 fl oz125 cup

Formula

cups = fluid ounces × 0.125
fluid ounces = cups × 8
Example: 5 fl oz × 0.125 = 0.625 cup

About the Fluid Ounces-to-Cups Conversion

Converting fluid ounces to cups is the standard US conversion needed for recipes, beverages, and product labels. 8 fluid ounces equals exactly one cup.

Real-World Examples

  • 8 fl oz (one cup) = 1 cup
  • 16 fl oz (two cups) = 2 cup
  • 4 fl oz (half-cup) = 0.5 cup
  • 32 fl oz (one quart) = 4 cup

Cups to Fluid Ounces (Reverse)

CupsFluid Ounces
0.25 cup2 fl oz
0.5 cup4 fl oz
1 cup8 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
10 cup80 fl oz
16 cup128 fl oz
25 cup200 fl oz
50 cup400 fl oz
100 cup800 fl oz
250 cup2000 fl oz
500 cup4000 fl oz
1000 cup8000 fl oz

Frequently Asked Questions

How many cups are in a fluid ounce?

1 fluid ounce equals 0.125 cups.

How do I convert fluid ounces to cups?

Multiply the value in fluid ounces by 0.125 to get cups. For example, 5 fl oz × 0.125 = 0.625 cup.

How do I convert cups back to fluid ounces?

Multiply the value in cups by 8 to get fluid ounces. Equivalently, divide by 0.125.

How many fluid ounces are in a cup?

1 cup equals 8 fluid ounces.

How many cups is 8 fl oz?

8 fl oz (one cup) equals 1 cup.

Is the fluid ounces-to-cups conversion exact?

Yes. 1 fl oz = 0.125 cup is an exact value defined by international agreement.

About Fluid Ounces and Cups

The US fluid ounce (symbol fl oz) equals 2 tablespoons, or exactly 29.5735 milliliters. It is distinct from the UK fluid ounce, which is slightly larger.

The US cup equals 8 fluid ounces, 16 tablespoons, or exactly 236.5882 milliliters. It is the workhorse unit of American home cooking.

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