oz to ml quick answer
For the US fluid ounce, multiply by 29.5735295625. For the Imperial fluid ounce, multiply by 28.4130625.
If you are starting with milliliters, use the mL to oz converter. If your problem is about 3D shape capacity instead of liquid unit conversion, use the volume calculator.
Where:
fl oz=
The volume in fluid ouncesUS factor=
29.5735295625 mL per US fluid ounceImperial factor=
28.4130625 mL per Imperial fluid ounceHow to convert ounces to milliliters
- Confirm you are using fluid ounces, not weight ounces.
- Choose US or Imperial fluid ounces.
- Multiply the number of fluid ounces by the correct milliliter factor.
Example for a common US cup:
8 US fl oz * 29.5735295625 = 236.588 mL
Common oz to ml conversions
- 1 US fl oz = 29.57 mL
- 2 US fl oz = 59.15 mL
- 8 US fl oz = 236.59 mL
- 16 US fl oz = 473.18 mL
- 32 US fl oz = 946.35 mL
When the ounce type matters
US recipes, nutrition labels, and most American search results use US fluid ounces. UK recipes may use Imperial fluid ounces. If you are measuring medicine or preparing a precise formula, check the label and use the matching system.