1 gram equals how many milliliters?

Answer 1

Milligram is a weight or mass. Milliliter is a volume.

1 milliliter of pure water weighs 1 gram or 1000 milligrams.

Scroll down to related links and look at "Volume and capacity conversion".

* * * * *

1 millilitre of water cannot weigh 1 gram because a gram is a measure of mass while weight is a force, not mass. Furthermore, some people still believe that 1 millilitre of pure water has a mass of 1 gram. Indeed, until 1964 a litre was defined as the volume of one kilogram of pure water at 4 degrees Celsius and at a pressure of 760 millilitres of Mercury. With that definition a conversion would have been valid - but only for pure water and only under those conditions. In any case that definition of a litre was abandoned in favour of 1 litre =1000 cubic centimetres. That WAS more than 50 years ago!

The density of pure water, under the conditions described above, is 999.9720 kg/metre3 NOT 1,000.

Answer 2

mL is a measure of volume

g is a measure of mass

You need to know the density of the substance you are asking about if you want to convert between volume and mass:

Volume (mL) = mass (g) / density (g/mL)

(To make a guess for water, you might assume the density of water to be 1.0 g/ml:

then 1g of water is 1.0 mL)

Answer 3

1 g of water is the mass of 1 ml of water. 1 g of oil or alcohol is about equal to 1.2 ml due to the smaller specific gravity.
for solids there is no easy rule, however using 1g to 1ml should give reasonable results.

Answer 4

None, since there can be no conversion. A gram 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 grams? Next consider the same volume of lead. How many grams?