1 US fluid ounce = 29.573529562 millilitres
A US fluid ounce is 29.5735 mL. Drinks labelling is where it shows up most: a 12 fl oz can is 355 mL, and a 16.9 fl oz bottle is exactly 500 mL.
Formula mL = fl oz × 29.5735295625
Type in either field — the other updates on every keystroke. Need other units? Open the full fluid converter.
| US fluid ounce | Millilitre |
|---|---|
| 1 fl oz | 29.57353 mL |
| 2 fl oz | 59.147059 mL |
| 3 fl oz | 88.720589 mL |
| 4 fl oz | 118.294118 mL |
| 5 fl oz | 147.867648 mL |
| 10 fl oz | 295.735296 mL |
| 15 fl oz | 443.602943 mL |
| 20 fl oz | 591.470591 mL |
| 25 fl oz | 739.338239 mL |
| 50 fl oz | 1478.676478 mL |
| 100 fl oz | 2957.352956 mL |
| 500 fl oz | 14786.764781 mL |
| 1000 fl oz | 29573.529562 mL |
| Millilitre | US fluid ounce |
|---|---|
| 1 mL | 0.033814 fl oz |
| 2 mL | 0.067628 fl oz |
| 3 mL | 0.101442 fl oz |
| 4 mL | 0.135256 fl oz |
| 5 mL | 0.16907 fl oz |
| 10 mL | 0.33814 fl oz |
| 15 mL | 0.50721 fl oz |
| 20 mL | 0.67628 fl oz |
| 25 mL | 0.845351 fl oz |
| 50 mL | 1.690701 fl oz |
| 100 mL | 3.381402 fl oz |
| 500 mL | 16.907011 fl oz |
| 1000 mL | 33.814023 fl oz |
| Situation | From | To |
|---|---|---|
| One fluid ounce | 1 fl oz | 29.57 mL |
| Shot glass | 1.5 fl oz | 44.36 mL |
| Cup | 8 fl oz | 236.6 mL |
| Soda can | 12 fl oz | 354.9 mL |
| Pint | 16 fl oz | 473.2 mL |
| Quart | 32 fl oz | 946.4 mL |
Multiply by 30, which reads about 1.4% high.
US drinks are sold in fluid ounces. A 12 fl oz can is 354.88 mL, sold as 355 mL, and a 16.9 fl oz bottle is 500 mL.
Imperial fluid ounces are smaller (28.41 mL) than US ones (29.57 mL). A fluid ounce also measures volume, not weight.
A US fluid ounce is 1/128 of a US gallon, exactly 29.5735295625 mL.
Related guides: Imperial vs metric: differences and quick conversion tricks · US cups to grams: flour, sugar, butter and more · How to scale a recipe up or down: the maths and the science · Top 20 liquid ingredients in cooking and how to measure them · US vs UK weights and measures: gallons, pints and tons