How to convert US cups to US fluid ounces
Multiply the number of US cups by 8. That is all there is to it, because the factor between US cups and US fluid ounces never changes.
Formula
fl oz = cup × 8
Example: 1 US cup × 8 = 8 US fluid ounces.
Cups to Fluid Ounces chart
| US cups (cup) | US fluid ounces (fl oz) |
|---|---|
| 0.25 cup | 2 fl oz |
| 0.33 cup | 2.64 fl oz |
| 0.5 cup | 4 fl oz |
| 0.67 cup | 5.36 fl oz |
| 0.75 cup | 6 fl oz |
| 1 cup | 8 fl oz |
| 1.25 cup | 10 fl oz |
| 1.5 cup | 12 fl oz |
| 2 cup | 16 fl oz |
| 2.5 cup | 20 fl oz |
| 3 cup | 24 fl oz |
| 4 cup | 32 fl oz |
| 5 cup | 40 fl oz |
| 6 cup | 48 fl oz |
| 8 cup | 64 fl oz |
Values are rounded to at most four decimals. The converter above shows more digits.
About the units
One US cup is 0.2365882365 liters.
One US fluid ounce is 0.02957352956 liters.
Need the other direction? Use the Fluid Ounces to Cups converter. For every volume unit at once, open the Volume Converter.
Frequently asked questions
How many US fluid ounces are in a US cup?
There are 8 US fluid ounces in one US cup.
How do I convert US cups to US fluid ounces?
Multiply the number of US cups by 8. For example: 1 US cup × 8 = 8 US fluid ounces.
What is 2.5 US cups in US fluid ounces?
2.5 US cups equals 20 US fluid ounces.