Cups to Fluid Ounces
1 US cup = 8 fluid ounces
Converter Calculator
1 Cups = 8 Fluid Ounces
Explanation
Fluid ounces (fl oz) are a volume measure, not a weight ounce, so this conversion keeps the math within that same 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
| Cups | Fluid Ounces |
|---|---|
| 0.25 | 2 |
| 0.333333 | 2.666666 |
| 0.5 | 4 |
| 0.666667 | 5.333334 |
| 0.75 | 6 |
| 1 | 8 |
| 1.5 | 12 |
| 2 | 16 |
| 3 | 24 |
| 4 | 32 |
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, and this converter keeps every result inside the volumetric dimension.
Does this assume a US cup?
Yes. It is built on the US customary cup defined as 236.588 mL so it shares the same definition used elsewhere on the site.
Are decimals supported?
Yes. The calculator accepts decimal cups and applies the exact factor so fractional volumes remain precise.
Why do recipes use cups instead of fluid ounces?
Cups are often more familiar for home cooks, but this converter lets you express the same volumes as fluid ounces when recipes demand precise pours.