30 fl oz ≈ 3.1225 cup (Imperial; in US cups: 30 fl oz = 3.75 US cup). To convert fluid ounces to cups, multiply by 0.10408423: 30 × 0.10408423 = 3.1225.
How to convert fluid ounces to cups
cup = fl oz × 0.10408423
- 1 fl oz = 0.10408423 cup (and 1 cup = 9.6076036 fl oz).
- Multiply the amount by the factor: 30 × 0.10408423 = 3.1225.
- Answer: 30 fl oz ≈ 3.1225 cup (rounded to 6 significant figures).
Fluid Ounces to Cups table
| Fluid Ounces (fl oz) | Cups (cup) |
|---|---|
| 25 fl oz | 2.6021 cup |
| 26 fl oz | 2.7062 cup |
| 27 fl oz | 2.8103 cup |
| 28 fl oz | 2.9144 cup |
| 29 fl oz | 3.0184 cup |
| 30 fl oz | 3.1225 cup |
| 31 fl oz | 3.2266 cup |
| 32 fl oz | 3.3307 cup |
| 33 fl oz | 3.4348 cup |
| 34 fl oz | 3.5389 cup |
| 35 fl oz | 3.6429 cup |
| fl oz | cup |
|---|---|
| 1 fl oz | 0.104084 cup |
| 5 fl oz | 0.520421 cup |
| 10 fl oz | 1.0408 cup |
| 50 fl oz | 5.2042 cup |
| 100 fl oz | 10.4084 cup |
| 1,000 fl oz | 104.084 cup |
Good to know
The cup here is the Imperial (UK) cup: 1 cup = 0.28413 L. A US cup is 0.236588 L.
In US cups: 30 fl oz = 3.75 US cup.
1 fl oz here is the US fluid ounce (29.5735 mL); a UK fluid ounce is 28.4131 mL.