How do you measure the size of plastic bags?

Question

the density for plastic bags is 0.94 g/ cm^3 , how can you measure the size of plastics bags. the unit is cm^3 ??????

Answer 1

if you divide weight (kg) by density you get volume.

Answer 2

You need more information:

You have the density, if you also have the mass and the thickness, then you can find the surface area.  With that, if you assume a shape of a sphere, you can calculate a volume.

If you know the dimensions of the bag when it is flat you can calcultate the surface area and...

Answer 3

Usually the size is the volume the bag can hold. Either Ft^3 or L^3.

As for thickness of the wall, that is in Mil (.001) in or mm (.01).

These are not related other than the stronger the bag the greater the thickness.