UK fluid ounces to millilitres
Type a value in either box. 1 fl oz (UK) = 28.413062 ml.
Last updated
How to convert
To convert UK fluid ounces to millilitres, multiply by 28.413062.
ml = fl oz (UK) × 28.413062
For example: 6 fl oz (UK) × 28.413062 = 170.4784 ml.
A UK fluid ounce is exactly 28.4130625 millilitres (1/160 of a UK gallon).
In your head: Multiply by 28, or by 30 for a rough kitchen figure (about 6% high): 5 fl oz ≈ 142 ml.
When you’ll need it
Old British recipes and some baby bottles are marked in UK fluid ounces: 10 fl oz of stock is 284 ml, half a pint.
Common values
| UK fluid ounces (fl oz (UK)) | Millilitres (ml) |
|---|---|
| 0.5 fl oz (UK) | 14.2065 ml |
| 1 fl oz (UK) | 28.4131 ml |
| 2 fl oz (UK) | 56.8261 ml |
| 3 fl oz (UK) | 85.2392 ml |
| 4 fl oz (UK) | 113.6522 ml |
| 5 fl oz (UK) | 142.0653 ml |
| 6 fl oz (UK) | 170.4784 ml |
| 8 fl oz (UK) | 227.3045 ml |
| 10 fl oz (UK) | 284.1306 ml |
| 12 fl oz (UK) | 340.9567 ml |
| 16 fl oz (UK) | 454.609 ml |
| 20 fl oz (UK) | 568.2613 ml |
Questions
- How many millilitres are in a UK fluid ounce?
- 1 UK fluid ounce is 28.413062 millilitres.
- What is the formula to convert UK fluid ounces to millilitres?
- ml = fl oz (UK) × 28.413062. A UK fluid ounce is exactly 28.4130625 millilitres (1/160 of a UK gallon).
- What is 6 UK fluid ounces in millilitres?
- 6 UK fluid ounces is 170.4784 millilitres.
- Are UK and US fluid ounces the same?
- Almost, but not quite. A UK fluid ounce is 28.413 ml and a US fluid ounce is 29.574 ml. This page uses UK fluid ounces; there is a separate ml to US fl oz converter.