Convert UK fluid ounces to millilitres
Enter a value in UK fluid ounces (UK fl oz) to get millilitres (ml). One UK fluid ounce is 28.4131 millilitres; one millilitre is 0.035195 UK fluid ounces.
How to use the UK fluid ounce to millilitre
- Type the number of UK fluid ounces.
- Click Convert.
- Read the result in millilitres, plus the same value in every other volume unit.
UK fl oz to ml formula
millilitres = UK fluid ounces × 28.4131. To go the other way, UK fluid ounces = millilitres × 0.035195 (see millilitres to UK fluid ounces).
Worked example
12 UK fl oz × 28.4131 = 340.9567 ml.
UK fluid ounces to millilitres conversion table
| UK fluid ounces | Millilitres |
|---|---|
| 0.1 UK fl oz | 2.8413 ml |
| 0.5 UK fl oz | 14.2065 ml |
| 1 UK fl oz | 28.4131 ml |
| 2 UK fl oz | 56.8261 ml |
| 3 UK fl oz | 85.2392 ml |
| 5 UK fl oz | 142.0653 ml |
| 10 UK fl oz | 284.1306 ml |
| 20 UK fl oz | 568.2612 ml |
| 25 UK fl oz | 710.3266 ml |
| 50 UK fl oz | 1,420.65 ml |
| 100 UK fl oz | 2,841.31 ml |
| 250 UK fl oz | 7,103.27 ml |
| 500 UK fl oz | 14,206.53 ml |
| 1,000 UK fl oz | 28,413.06 ml |
About the UK fluid ounce
28.4131 ml, about 4% smaller than the US fluid ounce.
About the millilitre
One cubic centimetre. Drinks, medicine and recipes in the metric world.
Related conversions
Frequently asked questions
How many millilitres in a UK fluid ounce?
28.4131 millilitres.
How many UK fluid ounces in a millilitre?
0.035195 UK fluid ounces.
Is the factor exact?
The factor 28.4131 is derived from the units' exact definitions; only the display is rounded.
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Last updated 2026-09-23.