Convert fl oz to cups
Input the number of fluid ounces you want to convert to cups.
How to Convert Fluid Ounces to Cups
The us fluid ounce and us cup are both units of volume. By definition, 1 us cup equals exactly 8 fluid ounces. This means to convert fluid ounces to cups, you divide by 8.
Formula
Step-by-Step Example
Convert 5 fl oz to cups:
We need to convert fluid ounces to cups
Since 1 cup = 8 fl oz, divide by 8
5 ÷ 8 = 0.625
5 fl oz = 0.625 cup
US Fluid Ounce to US Cup Conversion Table
Quick reference table for common us fluid ounce to us cup conversions. Click any value for detailed calculation.
| Fluid Ounces (fl oz) | Cups (cup) |
|---|---|
| 1 fl oz | 0.125 cup |
| 2 fl oz | 0.25 cup |
| 5 fl oz | 0.625 cup |
| 10 fl oz | 1.25 cup |
| 15 fl oz | 1.875 cup |
| 20 fl oz | 2.5 cup |
| 25 fl oz | 3.125 cup |
| 50 fl oz | 6.25 cup |
| 100 fl oz | 12.5 cup |
About These Units
US Fluid Ounce (fl oz)
A US fluid ounce (fl oz) equals 29.57 milliliters or 2 tablespoons. Fluid ounces measure beverages, medicines, and cosmetics. Note: fluid ounces measure volume, while ounces (oz) measure weight. There are 128 fluid ounces in a gallon.
US Cup (cup)
A US cup equals 8 fluid ounces, 16 tablespoons, or 237 milliliters. Cups are the standard volume measure for cooking and baking recipes in the United States. There are 4 cups in a quart, 2 cups in a pint. A metric cup is exactly 250 mL.
Frequently Asked Questions
How do I convert fluid ounces to cups?
To convert fluid ounces to cups, divide the value by 8. For example, 10 fl oz = 1.25 cup.
How many cups are in 1 us fluid ounce?
1 us fluid ounce equals 0.125 cups.
What is the formula for fluid ounces to cups?
The formula is: cup = fl oz ÷ 8.