391 fl oz ≈ 40.6969 cup (Imperial; in US cups: 391 fl oz = 48.875 US cup). To convert fluid ounces to cups, multiply by 0.10408423: 391 × 0.10408423 = 40.6969.
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: 391 × 0.10408423 = 40.6969.
- Answer: 391 fl oz ≈ 40.6969 cup (rounded to 6 significant figures).
Fluid Ounces to Cups table
| Fluid Ounces (fl oz) | Cups (cup) |
|---|---|
| 386 fl oz | 40.1765 cup |
| 387 fl oz | 40.2806 cup |
| 388 fl oz | 40.3847 cup |
| 389 fl oz | 40.4888 cup |
| 390 fl oz | 40.5928 cup |
| 391 fl oz | 40.6969 cup |
| 392 fl oz | 40.801 cup |
| 393 fl oz | 40.9051 cup |
| 394 fl oz | 41.0092 cup |
| 395 fl oz | 41.1133 cup |
| 396 fl oz | 41.2174 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: 391 fl oz = 48.875 US cup.
1 fl oz here is the US fluid ounce (29.5735 mL); a UK fluid ounce is 28.4131 mL.