Millilitres to UK Fluid Ounces Converter
The UK fluid ounce is 28.4131 mL, smaller than the US 29.5735 mL, because the UK pint holds twenty of them.
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UK and US fluid ounces are not the same
A UK fluid ounce is 28.4131 mL. A US fluid ounce is 29.5735 mL. The UK unit is smaller by about 4 percent, which is the opposite of what most people assume, because the UK pint is bigger. The reason is that the UK pint contains 20 fluid ounces while the US pint contains 16.
| Unit | Millilitres |
|---|---|
| 1 UK fluid ounce | 28.4131 mL |
| 1 US fluid ounce | 29.5735 mL |
| 1 UK pint (20 fl oz) | 568.26 mL |
| 1 US pint (16 fl oz) | 473.18 mL |
| 1 UK gallon (160 fl oz) | 4,546.1 mL |
Millilitres to UK fluid ounces
| Millilitres | UK fluid ounces | US fluid ounces |
|---|---|---|
| 50 mL | 1.76 UK fl oz | 1.69 US fl oz |
| 100 mL | 3.52 UK fl oz | 3.38 US fl oz |
| 150 mL | 5.28 UK fl oz | 5.07 US fl oz |
| 200 mL | 7.04 UK fl oz | 6.76 US fl oz |
| 250 mL | 8.8 UK fl oz | 8.45 US fl oz |
| 330 mL | 11.61 UK fl oz | 11.16 US fl oz |
| 350 mL | 12.32 UK fl oz | 11.83 US fl oz |
| 500 mL | 17.6 UK fl oz | 16.91 US fl oz |
| 568 mL | 19.99 UK fl oz | 19.21 US fl oz |
| 750 mL | 26.4 UK fl oz | 25.36 US fl oz |
| 1000 mL | 35.2 UK fl oz | 33.81 US fl oz |
Reading a British product label
- UK drinks are labelled in millilitres by law, so you will see 330 mL, not 11.6 fl oz. The fluid ounce appears mainly in older cookbooks and imported US packaging.
- A 330 mL can is 11.6 UK fl oz but 11.2 US fl oz - the same can, two different answers.
- Beer served on draught in Britain is sold by the pint, 568 mL. Bottled beer is labelled in millilitres.
- If a British recipe says 8 fl oz of milk, use 227 mL, not the 237 mL a US fluid ounce would give.
Related pages
Frequently Asked Questions
How many mL in a UK fluid ounce?
28.4131 mL. The US fluid ounce is 29.5735 mL.
Is a 330 mL can 11.6 fl oz?
Yes in UK fluid ounces (11.61). In US fluid ounces the same can is 11.16.
Is a UK pint 20 fluid ounces?
Yes. 20 x 28.4131 mL = 568.26 mL. A US pint is 16 x 29.5735 mL = 473.18 mL.
