It can't be done. Additional information. Your 15 milliliters is 15 milligrams of water, but there is no direct conversion for other substances because of their different densities. Milliliters is a measure of volume, and milligrams is a measure of mass (weight). This question is similar to the question, "How do you convert gallons to pounds?" A gallon of water weighs more than a gallon of gasoline, and way less than a gallon of liquid Mercury. Do you see the problem? Unless you have a conversion factor for the substance or a density or specific gravity of that substance, you can't get there from here.
By dividing it by the density of the substance (measured in milligrams per milliliter) making up those 15 milligrams.
Does not convert; milligrams (mg) and grams (g) are measures of weight or mass and mL (milliliters) is a measure of volume.
Milliliters and milligrams are not equivalent unit types.
Milliliters can't be converted to milligrams. Milliliters measure volume, while milligrams measure mass.
Does not convert; one is a measure of weight and the other is a measure of volume.
Does not convert; milligrams (mg) and grams (g) are measures of weight or mass and mL (milliliters) is a measure of volume.
Milliliters does not convert to milligrams.
Milligrams and milliliters are two different measures, milligrams measure mass and milliliters measure volume and you can not convert one to the other.
Milligrams can't be converted to milliliters. Milligrams measure mass, while milliliters measure volume.
Milligrams and milliliters measure different things. For a specific substance, you can convert the milligrams to grams (dividing by 1000), then divide by the density of the substance (expressed in grams / milliliter), to get the volume (in milliliters).
Milligrams is a unit of mass. Milliliters is a unit of volume. To convert between these units you must know the density of the substance.Density = mass / volume.
It is important to know how to convert units throughout life. In 90 milligrams of substance there are 0.09 milliliters of substance.
Does not convert; milligrams (mg) and grams (g) are measures of weight or mass and mL (milliliters) is a measure of volume.
Does not convert; milligrams (mg) and grams (g) are measures of weight or mass and mL (milliliters) is a measure of volume.
Jo measured 15 mL of water. How many grams of water was that?
This is not a valid conversion; milligrams (mg) and grams (g) are measures of weight or mass and mL (milliliters) is a measure of volume.
Does not convert; milligrams (mg) and grams (g) are measures of weight or mass and mL (milliliters) is a measure of volume.
Does not convert; milligrams and grams are measures of weight and mL (milliliters) is a measure of volume.