Fluid Ounces to Cups
1 US fluid ounce = 0.125 cups
Converter Calculator
1 Fluid Ounces = 0.125 Cups
Explanation
Fluid ounces (fl oz) are a volume measure, not a weight ounce, so this conversion keeps the math within that same volumetric dimension.
It follows the US customary definitions (1 US cup = 236.588 mL and 1 US fluid ounce = 29.5735295625 mL) so the result stays consistent with the rest of the beverage converters.
Common Conversion Values
| Fluid Ounces | Cups |
|---|---|
| 1 | 0.125 |
| 2 | 0.25 |
| 3 | 0.375 |
| 4 | 0.5 |
| 5 | 0.625 |
| 8 | 1 |
| 12 | 1.5 |
| 16 | 2 |
| 20 | 2.5 |
| 32 | 4 |
How to use this hub
- Choose a converter family.
- If converting to/from grams from a volume unit, select an ingredient.
- For pure unit changes (volume↔volume or weight↔weight), use universal conversions.
If your conversion includes grams, you’ll choose an ingredient; otherwise you won’t.
Frequently Asked Questions
Are fluid ounces the same as ounces (weight)?
Fluid ounces (fl oz) measure volume while ounces (oz) measure weight, so this page stays inside the volumetric dimension.
Does this assume a US cup?
Yes. It uses the US customary cup defined as 236.588 mL so the result matches the site's shared cup definition.
Are decimals supported?
Yes. Decimal fluid ounce inputs apply the precise factor so the resulting cup totals remain accurate.
Why do recipes sometimes list fluid ounces instead of cups?
Fluid ounces can describe pours more precisely for bars and recipes, and this converter shows how those pours relate back to cups.