There's no single answer to this question because there are two types of ounces:

* Fluid ounces (fl oz): This is the most common type used for measuring liquid volume.

* Avoirdupois ounces (oz): This is used for measuring weight.

Here's the conversion for fluid ounces:

* 1 fluid ounce (fl oz) is equal to approximately 29.5735 milliliters (ml).

Therefore, to convert milliliters to fluid ounces, divide the number of milliliters by 29.5735.

For example:

* 59.147 ml is equal to 2 fl oz (59.147 / 29.5735 = 2)

Remember: You cannot directly convert milliliters to avoirdupois ounces because they measure different things.