Volume conversion
4 cups to fl oz
32 fl oz
4 US cups = 32 US fluid ounces. Exact factor: fl oz = cups × 8.
Live converter
Edit either field — the other updates instantly. Type decimal values like 38.4.
The formula
fl oz = cups × 8
Worked example: 4 × 8 = 32 fl oz.
Values near 4 cups
| cups | fl oz |
|---|---|
| 3.25 | 26 |
| 3.5 | 28 |
| 3.75 | 30 |
| 4this page | 32 |
| 4.25 | 34 |
| 4.5 | 36 |
| 4.75 | 38 |
Frequently asked
How do you convert US cups to US fluid ounces?
Apply the formula fl oz = cups × 8. Enter any value in the live converter above and the result updates as you type.
What is 4 cups in fl oz?
4 cups equals 32 fl oz. The reference table below shows the values immediately around 4 cups.
Is this conversion exact?
Yes. Eight fluid ounces to the cup is exact. This measures volume, so it does not tell you the weight of what is in the cup.