However, it's important to note that there are two common types of fluid ounces:

* US fluid ounces: This is the most common type used in the United States.

* Imperial fluid ounces: This is the type used in the United Kingdom and some other countries.

The conversion factor between ml and fl oz varies slightly depending on which type of fluid ounce you're using:

* 1 ml = 0.033814 US fluid ounces

* 1 ml = 0.035195 Imperial fluid ounces

So, if you're working with a recipe or measurement that requires a specific type of fluid ounce, make sure to use the correct conversion factor.