None.
A milligram is a measure of mass. A millilitre is a measure of volume. The two measure different things and, according to basic principles of dimensional analysis, conversion from one to the other is not valid.
Consider a millilitre of air. How many milligrams? Next consider the same volume of water. How many milligrams?
Chat with our AI personalities
3 hl = 300 liters = 300 000 milliliters
300 milliliters is 10.14 fluid ounces.
0.317006 quarts
I would have to say half a miligram - one miligram at the most.
300 milliliters