Fluid ounces to millilitres
Convert UK fluid ounces to millilitres. To convert UK fluid ounces to millilitres, multiply by 28.413.
Factors from their legal definitions.
Result
8 UK fluid ounces is 227.305 millilitres.
| One UK fluid ounce | 28.413 ml |
|---|---|
| One millilitre | 0.0352 fl oz |
Show the workings
| Step | Sum | Answer |
|---|---|---|
| One UK fluid ounce in litres | 0.56826125 litres ÷ 20 | 0.028 litres |
| One millilitre in litres | a thousandth of a litre | 0.001 litres |
| 8 UK fluid ounces in litres | 8 × 0.02841 | 0.227 litres |
| In millilitres | 0.2273 ÷ 0.001 | 227.305 ml |
Where the figures come from
- A UK pint in litres: 0.568 litres per pint. Source: Weights and Measures Act 1985, Schedule 1. Checked 13 November 2026.
- UK fluid ounces in a pint: 20 fluid ounces per pint. Source: Weights and Measures Act 1985, Schedule 1. Checked 13 November 2026.
Fluid ounces to millilitres table
| UK fluid ounces | Millilitres |
|---|---|
| 0.5 fl oz | 14.207 ml |
| 1 fl oz | 28.413 ml |
| 2 fl oz | 56.826 ml |
| 3 fl oz | 85.239 ml |
| 4 fl oz | 113.652 ml |
| 5 fl oz | 142.065 ml |
| 6 fl oz | 170.478 ml |
| 7 fl oz | 198.891 ml |
| 8 fl oz | 227.305 ml |
| 9 fl oz | 255.718 ml |
| 10 fl oz | 284.131 ml |
| 12 fl oz | 340.957 ml |
| 15 fl oz | 426.196 ml |
| 20 fl oz | 568.261 ml |
| 25 fl oz | 710.327 ml |
| 30 fl oz | 852.392 ml |
| 40 fl oz | 1,136.5 ml |
| 50 fl oz | 1,420.7 ml |
| 75 fl oz | 2,131 ml |
| 100 fl oz | 2,841.3 ml |
How to convert UK fluid ounces to millilitres
One UK fluid ounce is 28.413 millilitres, and one millilitre is 0.0352 UK fluid ounces. So to turn UK fluid ounces into millilitres, multiply by 28.413. For example, 8 UK fluid ounces × 28.413 = 227.305 millilitres.
Where the numbers come from
Imperial units are defined in law as exact amounts of metric ones. These are the definitions this converter uses:
- A UK pint in litres: 0.568 litres per pint. Source: Weights and Measures Act 1985, Schedule 1.
- UK fluid ounces in a pint: 20 fluid ounces per pint. Source: Weights and Measures Act 1985, Schedule 1.