US fluid ounces to millilitres
Type a value in either box. 1 fl oz (US) = 29.57353 ml.
Last updated
How to convert
To convert US fluid ounces to millilitres, multiply by 29.57353.
ml = fl oz (US) × 29.57353
For example: 12 fl oz (US) × 29.57353 = 354.8824 ml.
A US fluid ounce is exactly 29.5735295625 millilitres (1/128 of a US gallon).
In your head: Multiply by 30: 8 US fl oz ≈ 240 ml (exactly 236.6 ml).
When you’ll need it
Useful for American recipes and travel liquids: the 3.4 fl oz limit on US airport signs is 100 ml.
Common values
| US fluid ounces (fl oz (US)) | Millilitres (ml) |
|---|---|
| 0.5 fl oz (US) | 14.7868 ml |
| 1 fl oz (US) | 29.5735 ml |
| 2 fl oz (US) | 59.1471 ml |
| 4 fl oz (US) | 118.2941 ml |
| 6 fl oz (US) | 177.4412 ml |
| 8 fl oz (US) | 236.5882 ml |
| 12 fl oz (US) | 354.8824 ml |
| 16 fl oz (US) | 473.1765 ml |
| 20 fl oz (US) | 591.4706 ml |
| 24 fl oz (US) | 709.7647 ml |
| 32 fl oz (US) | 946.3529 ml |
| 64 fl oz (US) | 1,892.7059 ml |
Questions
- How many millilitres are in a US fluid ounce?
- 1 US fluid ounce is 29.57353 millilitres.
- What is the formula to convert US fluid ounces to millilitres?
- ml = fl oz (US) × 29.57353. A US fluid ounce is exactly 29.5735295625 millilitres (1/128 of a US gallon).
- What is 12 US fluid ounces in millilitres?
- 12 US fluid ounces is 354.8824 millilitres.
- Are US and UK fluid ounces the same?
- Almost, but not quite. A US fluid ounce is 29.574 ml and a UK fluid ounce is 28.413 ml. This page uses US fluid ounces; there is a separate ml to UK fl oz converter.