a milligram is one one-thousandth of a gram which measures mass and a milliter is one one-thousandth of a liter which measures volume so this question cannot be answered.
Here is a link of another question. :) http://wiki.answers.com/Q/How_many_milligrams_equal_1_milliliter or you could just type "How many milligrams equal 1 milliliter?"
Milligrams versus millilitersOne milliliter of water weighs one gram. There are 1000 milligrams in one gram.One milliliter of other substances will weigh more or less, depending upon their densities. A millilter of gasoline, for example, weighs less, and a milliliter of mercury weighs more -- WAY more. (No pun intended.)Milligram is a unit of mass; milliliter is a unit of volume. You can't directly convert the two. If you know the density of a substance, you can say, for example, "1 milliliter of water has a mass of 1 gram (1000 milligrams)", or "1 milliliter of lead has a mass of about 11 gram".
One milliliter is equal to one gram (1 mL= 1 g), and there are 1,000 milligrams in a liter, so 3 mL is equal to 3,000 milligrams and 100 mg is equal to .1 mL.
There are 453,592.37 milligrams in one pound.
One milliliter is equal to 0.0002641721 gallons.
One.
There are 50 grams in one milliliter and 1000 milligrams in one liter, so there are 50,000 milligrams in 50 grams.
One cubic centimeter equals one milliliter. == ==
One hundred milligrams does not equal ten milliliters. One thousand milligrams equals one gram, one gram is equal to one milliliter.
A milligram is a unit of weight, it is one-thousandth of one gram. Milliliters are units of volume. each milliliter is one-thousandth of one liter (or 1 cubic centimeter). In the case of pure water, one liter weighs one kilogram. Since each kilogram is 1000 grams, it means that each kilogram is one million milligrams. so 500 milligrams would be equal to half a gram. A gram of pure water then would have a volume of 1 milliliter, so half a gram (500 milligrams) would have a volume of half a milliliter. Please note that this relation between milligrams and milliliters holds for pure water only, because the density of water is 1 gram per cubic centimeter (a cubic centimeter is by definition equal to 1 milliliter). In the case of gold, which roughly has a density of 19 grams per cubic centimeter, half a gram (or 500 milligrams) of gold would then have a volume of 0.5 milliliter divided by 19, or .0263 milliliters.
One kilogram is equal to 1000000 milligrams. Therefore, 89 milligrams is equal to 89/1000000 = 0.000089 kilograms.
One kilogram is equal to 1000000 milligrams. Therefore, 263 milligrams is equal to 263/1000000 = 0.000263 kilograms.