CalcVind

US Cups to US Fluid Ounces Converter

Convert US cups (cup) to US fluid ounces (fl oz)

Convert Volume

cup

Results update as you type

Result

8 fl oz
US Fluid Ounces

1 cup = 8 fl oz

1 cup in other units

  1. 1
    Enter a value
    Type the number to convert
  2. 2
    Pick the units
    Choose what to convert from and to
  3. 3
    Read the result
    See it in every other unit too

How to convert US cups to US fluid ounces

One US cup equals 8 US fluid ounces, so multiply the number of US cups by 8.

fl oz = cup × 8

1 cup = 8 fl oz · 1 fl oz = 0.125 cup

Worked example

To convert 5 US cups to US fluid ounces: 5 cup × 8 = 40 fl oz.

About US cups (cup)

A US cup is 8 US fluid ounces, about 236.6 mL. A “metric cup” used in some recipes is 250 mL.

About US fluid ounces (fl oz)

A US fluid ounce is about 29.57 mL. Drink and bottle sizes in the US use fluid ounces.

More conversions

US Cups to other units

Other units to US Fluid Ounces

Frequently asked questions

How many US fluid ounces are in one US cup?

One US cup equals 8 US fluid ounces.

How many US cups are in one US fluid ounce?

One US fluid ounce equals 0.125 US cups.

How do I convert US cups to US fluid ounces?

Use the formula fl oz = cup × 8. For example, 5 cup × 8 = 40 fl oz.