# How many milliliters are in one ounce?

###### Wiki User

###### July 29, 2016 5:25PM

The US food labelling fluid ounce has 30 mL. Ounce is not a SI unit.

###### Wiki User

###### July 29, 2016 5:33AM

*How many ml* in 1 oz? The answer is 29.5735296875 ml/ fl.
oz.(US)

For imperial measure there is 28.35 ml in a fluid ounce.

###### Wiki User

###### July 11, 2016 5:54PM

None, since there can be no conversion. An ounce is a measure of
**mass**. A millilitre is a measure of **volume**. The two
measure different things and, according to basic principles of
dimensional analysis, conversion from one to the other is not
valid.

###### Wiki User

###### July 11, 2016 4:10PM

Assuming that you mean millilitres and not militers, the answer
is that there can be no conversion.

An ounce is a measure of mass. A millilitre is a measure of volume.
The two measure different things and, according to basic principles
of dimensional analysis, conversion from one to the other is not
valid. Consider an ounce of air. How many millilitres? Next
consider the same mass of lead. How many millilitres?