Cups to Fluid Ounces
Convert cups (cup) to fluid ounces (fl oz). Type in either box; the other updates as you go.
How to convert cups to fluid ounces
To convert cups to fluid ounces, multiply the number of cups by 8.
Example
Convert 5 cups to fluid ounces:
Cup to fluid ounce conversion chart
| Cups (cup) | Fluid Ounces (fl oz) |
|---|---|
| 1 cup | 8 fl oz |
| 2 cup | 16 fl oz |
| 3 cup | 24 fl oz |
| 4 cup | 32 fl oz |
| 5 cup | 40 fl oz |
| 6 cup | 48 fl oz |
| 7 cup | 56 fl oz |
| 8 cup | 64 fl oz |
| 9 cup | 72 fl oz |
| 10 cup | 80 fl oz |
| 12 cup | 96 fl oz |
| 15 cup | 120 fl oz |
| 20 cup | 160 fl oz |
| 25 cup | 200 fl oz |
| 30 cup | 240 fl oz |
| 40 cup | 320 fl oz |
| 50 cup | 400 fl oz |
| 60 cup | 480 fl oz |
| 70 cup | 560 fl oz |
| 75 cup | 600 fl oz |
| 80 cup | 640 fl oz |
| 90 cup | 720 fl oz |
| 100 cup | 800 fl oz |
| 150 cup | 1,200 fl oz |
| 200 cup | 1,600 fl oz |
| 250 cup | 2,000 fl oz |
| 500 cup | 4,000 fl oz |
| 1,000 cup | 8,000 fl oz |
Going the other way? See the fluid ounces to cups chart.
About the units
Cup (cup)
A US customary cup is 8 US fluid ounces, about 236.6 milliliters. Nutrition labels use a rounded 240 mL cup, and a metric cup is 250 mL.
Fluid Ounce (fl oz)
A US fluid ounce is 1/128 of a US gallon, about 29.57 milliliters. It measures liquid volume, not weight.
Frequently asked questions
How many fluid ounces are in a cup?
There are 8 fluid ounces in a cup.
How many cups are in a fluid ounce?
There are 0.125 cups in a fluid ounce.
How do you convert cups to fluid ounces?
To convert cups to fluid ounces, multiply the number of cups by 8.
What is 5 cups in fluid ounces?
5 cups equals 40 fluid ounces.
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