Fluid Ounces to Cups
( fl oz → cup )
Instantly convert US fluid ounces to US cups. Enter any value below and get an accurate result with the full formula and reference table.
How to Convert Fluid Ounces to Cups
To convert US fluid ounces to US cups, divide the number of fluid ounces by 8. This is because one cup is defined as exactly 8 fluid ounces in the US customary system.
Step-by-Step Example
Let’s convert 16 fluid ounces to cups:
1. Divide by 8: 16 ÷ 8 = 2
2. So 16 fl oz equals 2 cups.
For a smaller amount, 4 fl oz ÷ 8 = 0.5 cup (½ cup).
When You’d Use Each Unit
Fluid ounces are commonly used in the US for measuring liquids like milk, water, or juice in recipes and beverage serving sizes. Cups are used for larger volumes such as flour, sugar, milk, or water in recipes. Converting between them helps scale recipes accurately and understand serving sizes.
Common fluid ounces values converted to cups — typical values highlighted.
| Fluid Ounces (fl oz) | Cups (cup) | Approximate |
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