ML to Fluid Ounces Converter
Convert millilitres to US fluid ounces — 29.57 ml to the fluid ounce. Results update as you type; exact factors shown.
One millilitre is 0.0338 US fluid ounces — see the exact factor, not a rounded rule of thumb.
How the ml to fluid ounces converter works
Volumes convert through the litre (exactly 1 dm³). The US gallon is exactly 3.785411784 L (231 cubic inches); the imperial gallon is exactly 4.54609 L. A US fluid ounce is 29.5735 mL, an imperial fluid ounce 28.4131 mL; a US pint is 16 US fl oz, an imperial pint 20 imperial fl oz.
The UK is metric for most trade and science but keeps miles, pints, stone and mpg (with the imperial gallon) in daily life.
Common volume conversions
| From | To | Units |
|---|---|---|
| 5 mL | 0.1691 US fl oz | millilitres to US fluid ounces |
| 15 mL | 0.5072 US fl oz | millilitres to US fluid ounces |
| 30 mL | 1.0144 US fl oz | millilitres to US fluid ounces |
| 50 mL | 1.6907 US fl oz | millilitres to US fluid ounces |
| 100 mL | 3.3814 US fl oz | millilitres to US fluid ounces |
| 150 mL | 5.0721 US fl oz | millilitres to US fluid ounces |
| 200 mL | 6.7628 US fl oz | millilitres to US fluid ounces |
| 250 mL | 8.4535 US fl oz | millilitres to US fluid ounces |
| 330 mL | 11.1586 US fl oz | millilitres to US fluid ounces |
| 500 mL | 16.907 US fl oz | millilitres to US fluid ounces |
| 750 mL | 25.3605 US fl oz | millilitres to US fluid ounces |
| 1,000 mL | 33.814 US fl oz | millilitres to US fluid ounces |
Units in this converter and their exact factors
| Unit | Symbol | One unit in litres |
|---|---|---|
| millilitre | mL | 0.001 litre |
| litre | L | 1 litre |
| cubic metre | m³ | 1,000 litre |
| teaspoon (metric) | tsp | 0.005 litre |
| tablespoon (metric) | tbsp | 0.015 litre |
| cup (metric) | cup | 0.25 litre |
| US fluid ounce | US fl oz | 0.0295735296 litre |
| US cup | US cup | 0.2365882365 litre |
| US pint | US pt | 0.473176473 litre |
| US gallon | US gal | 3.785411784 litre |
| imperial fluid ounce | imp fl oz | 0.0284130625 litre |
| imperial pint | imp pt | 0.56826125 litre |
| imperial gallon | imp gal | 4.54609 litre |
| cubic foot | ft³ | 28.316846592 litre |
FAQFrequently asked questions about volume conversion
How many ml in a US fluid ounce?
29.5735 ml.
Is the UK fluid ounce the same?
No — the imperial fluid ounce is 28.413 ml, slightly smaller.
What is 250 ml in fluid ounces?
8.45 US fl oz — near enough to a cup.
Is a fluid ounce a weight?
No, it is a volume. An ounce of weight is a different unit entirely.
How much is a standard drink can?
330 ml is 11.2 US fl oz; a US can is usually 12 fl oz, which is 355 ml.
Where these figures come from
- BIPM — The International System of Units (SI Brochure, 9th edition) — definitions of the base and derived units.
- NIST Special Publication 811 — Guide for the Use of the International System of Units — the exact conversion factors used here.
- National Physical Laboratory (NPL) — United Kingdom's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.