ML to Fluid Ounces Converter
Convert milliliters to US fluid ounces — 29.57 ml to the fluid ounce. Results update as you type; exact factors shown.
One milliliter 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 liter (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 US uses customary units (US gallon, short ton, °F) in daily life; NIST SP 811 gives the exact SI factors.
Common volume conversions
| From | To | Units |
|---|---|---|
| 5 mL | 0.1691 US fl oz | milliliters to US fluid ounces |
| 15 mL | 0.5072 US fl oz | milliliters to US fluid ounces |
| 30 mL | 1.0144 US fl oz | milliliters to US fluid ounces |
| 50 mL | 1.6907 US fl oz | milliliters to US fluid ounces |
| 100 mL | 3.3814 US fl oz | milliliters to US fluid ounces |
| 150 mL | 5.0721 US fl oz | milliliters to US fluid ounces |
| 200 mL | 6.7628 US fl oz | milliliters to US fluid ounces |
| 250 mL | 8.4535 US fl oz | milliliters to US fluid ounces |
| 330 mL | 11.1586 US fl oz | milliliters to US fluid ounces |
| 500 mL | 16.907 US fl oz | milliliters to US fluid ounces |
| 750 mL | 25.3605 US fl oz | milliliters to US fluid ounces |
| 1,000 mL | 33.814 US fl oz | milliliters to US fluid ounces |
Units in this converter and their exact factors
| Unit | Symbol | One unit in liters |
|---|---|---|
| milliliter | mL | 0.001 liter |
| liter | L | 1 liter |
| cubic meter | m³ | 1,000 liter |
| teaspoon (metric) | tsp | 0.005 liter |
| tablespoon (metric) | tbsp | 0.015 liter |
| cup (metric) | cup | 0.25 liter |
| US fluid ounce | US fl oz | 0.0295735296 liter |
| US cup | US cup | 0.2365882365 liter |
| US pint | US pt | 0.473176473 liter |
| US gallon | US gal | 3.785411784 liter |
| imperial fluid ounce | imp fl oz | 0.0284130625 liter |
| imperial pint | imp pt | 0.56826125 liter |
| imperial gallon | imp gal | 4.54609 liter |
| cubic foot | ft³ | 28.316846592 liter |
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 Institute of Standards and Technology (NIST) — United States's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.