20 fl oz ≈ 2.0817 cup (Imperial; in US cups: 20 fl oz = 2.5 US cup). To convert fluid ounces to cups, multiply by 0.10408423: 20 × 0.10408423 = 2.0817.
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: 20 × 0.10408423 = 2.0817.
- Answer: 20 fl oz ≈ 2.0817 cup (rounded to 6 significant figures).
Fluid Ounces to Cups table
| Fluid Ounces (fl oz) | Cups (cup) |
|---|---|
| 15 fl oz | 1.5613 cup |
| 16 fl oz | 1.6653 cup |
| 17 fl oz | 1.7694 cup |
| 18 fl oz | 1.8735 cup |
| 19 fl oz | 1.9776 cup |
| 20 fl oz | 2.0817 cup |
| 21 fl oz | 2.1858 cup |
| 22 fl oz | 2.2899 cup |
| 23 fl oz | 2.3939 cup |
| 24 fl oz | 2.498 cup |
| 25 fl oz | 2.6021 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: 20 fl oz = 2.5 US cup.
1 fl oz here is the US fluid ounce (29.5735 mL); a UK fluid ounce is 28.4131 mL.