# How Do I Convert G/cm3 To Kg/m2 And/or G/cm2 To Kg/m2?

You need to be clear about what you're trying to convert, and what you expect it to mean. "mass" per "volume", as in grams or kilograms per cubic centimeter or cubic meter, is a measure of density, an intrinsic property of material. "mass" per "area", as in grams or kilograms per square centimeter or square meter, is a measure of areal loading--not the same as density. One can only be converted to the other if you know the volume of material involved and the area over which it is spread.

"Kilo-" is a prefix meaning 1000. "Centi-" is a prefix meaning 1/100.

1 kg = 1000 g
1 cm = .01 m
Otherwise, you can treat the units of measure as you would any variable. You can multiply and divide them as you need to do the conversion you want.
(10.5 g)/(50 cm^2)
= .21 g/cm^2
= (.21 g/cm^2)*(1 kg/(1000 g))*(100 cm/m)^2
= 2.1 kg/m^2
thanked the writer.
The conversion is as follows.
1 gr/cm2 = 0.1 kg/m2
1 gr/cm3 = 0.001 kg/m3

The volume of a cylinder = surface area * height = 50*20 = 1000
mass/volume = 300/1000 = 3/10 gr/cm3.
You can change it to kg/m3 by using the conversion given above.
thanked the writer.
Anonymous commented
The conversion coefficients are incorrect, as is the calculation of the cylinder's volume. 