The are two different systems of measurement customary and metric, but ml is more accurate because of smaller increments
30ml is equivalent to 1 US fluid ounce (1.014 to be more exact).
90 mL equates to approximately 3.04 fluid ounces.
There are approximately 0.17 fluid ounces in 5 ml.
256 mL is about 8.656 US fluid ounces.
2 fluid ounces is 59.1 (59.1471) mL
238 mL = 8 fluid ounces.
12 US fluid ounces = 354.88 ml 12 Imperial fluid ounces = 340.96 ml
1 fluid ounce = 28 ml so 990 ml = 35.36 fluid ounces
500 mL equates to about 16.9 US fluid ounces.
10 US fluid ounces = 295.735 ml
198.143 mL
10 mL is equal to about 0.338 fluid ounces.