Grams is weight, Mls (milliliters) is volume. That's like saying "How do you convert 12 ounces into pints?" You can do it if you say "How much is 12 ounces OF MILK in pints?"
300 ounces of water is 8,504.858 ml
45 milliliters is 1.52 ounces. (US)
That is 52.911 ml.
13.525 US fluid ounces is equal to about 400mL
750 milliliters is 25.36 fluid ounces.
To convert guage to mils, multiply by 0.01 (see related link). 1 gauge equals 0.01 mils
That is 100.548 ml.
That is 8.18 ounces
That is 265.771 mls
mililiters? 4 ounces is equal to 118.2941 mililiters.
That is 3.381 fl oz.