Fluid Ounces to Cups Converter
Convert fluid ounces to cups using the formula fl oz ÷ 8 = cup. The calculator below shows higher precision results. The reference table is rounded for readability.
This converter uses US customary fluid ounces. UK (imperial) fluid ounces are a different size.
Formula and Step-by-Step
Step-by-step: 1 fl oz to cup
- Start with 1 fl oz
- Divide by 8: 1 ÷ 8 = 0.125
- Result: 1 fl oz = 0.125 cup
Conversion Table
Common fluid ounces to cups values. The table and calculator both use the same conversion formula shown above.
What Are Fluid Ounces and Cups?
What is a Fluid Ounce?
A US fluid ounce is a unit of volume equal to approximately 29.57 milliliters. A UK (imperial) fluid ounce is slightly smaller at 28.41 milliliters. This converter uses US fluid ounces.
What is a Cup?
A US cup is a unit of volume equal to approximately 236.6 milliliters. It is a standard cooking measurement in US recipes.
Why convert fluid ounces to cups?
People convert fluid ounces to cups when working across different measurement systems.