Volume conversion
8 cups to fl oz
64 fl oz
8 US cups = 64 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: 8 × 8 = 64 fl oz.
Values near 8 cups
| cups | fl oz |
|---|---|
| 7.25 | 58 |
| 7.5 | 60 |
| 7.75 | 62 |
| 8this page | 64 |
| 8.25 | 66 |
| 8.5 | 68 |
| 8.75 | 70 |
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 8 cups in fl oz?
8 cups equals 64 fl oz. The reference table below shows the values immediately around 8 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.