Volume conversion
3 fl oz to cups
0.375 cups
3 US fluid ounces = 0.375 US cups. Exact factor: cups = fl oz ÷ 8.
Live converter
Edit either field — the other updates instantly. Type decimal values like 38.4.
The formula
cups = fl oz ÷ 8
Worked example: 3 × 0.125 = 0.375 cups.
Values near 3 fl oz
| fl oz | cups |
|---|---|
| 2.25 | 0.281 |
| 2.5 | 0.313 |
| 2.75 | 0.344 |
| 3this page | 0.375 |
| 3.25 | 0.406 |
| 3.5 | 0.438 |
| 3.75 | 0.469 |
Frequently asked
How do you convert US fluid ounces to US cups?
Apply the formula cups = fl oz ÷ 8. Enter any value in the live converter above and the result updates as you type.
What is 3 fl oz in cups?
3 fl oz equals 0.375 cups. The reference table below shows the values immediately around 3 fl oz.
Is this conversion exact?
Yes. If a recipe gives ounces for a dry ingredient it usually means weight, not fluid ounces — check before pouring.