64 ounces equal how many ML?

Answer 1

This is a question which cannot be answered, without knowing what the substance in question is.

64 ounces of lead will be a lot fewer ML than 64 ounces of air.

Unless you mean 64 fluid ounces.

In which case,

64 US fluid ounces = 1892 ML

and

64 Imperial fluid ounces =1818 ML

Answer 2

1892.71mL = 64 fluid ounces

Answer 3

64 ounces is equivalent to 1892.71 milliliters.