ACCURATE CONVERSION
US cups to US fluid ounces Converter
Convert US cups (cup) to US fluid ounces (fl oz) with a standards-based formula.
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How to convert US cups to US fluid ounces
Enter a value in the converter above. The result updates immediately using the relationship below.
FORMULA1 US cup = 8 US fluid ounces
US cups to US fluid ounces conversion table
| US cups (cup) | US fluid ounces (fl oz) |
|---|---|
| 1 | 8 |
| 5 | 40 |
| 10 | 80 |
| 20 | 160 |
| 50 | 400 |
| 100 | 800 |
Common values
For a quick estimate, multiply by the factor above. Use more decimal places when technical work requires additional precision.
Frequently asked questions
How many US fluid ounces are in one US cup?
One US cup equals 8 US fluid ounces.
How do you convert US cups to US fluid ounces?
Multiply the US cup value by 8.
Can I convert US fluid ounces back to US cups?
Yes. One US fluid ounce equals 0.125 US cups; you can also use the swap button.