How long is 1 millimeter?

Answer 1

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

1 milliliter of pure water weighs 1 gram or 1000 milligrams but it depends on the substance.

Scroll down to related links and look at "Volume and capacity conversion".
how many mg is in 30 ml

Answer 2

1 mm is about the width of a fingernail. This is totally incorrect. It is the size of a grain of sand or a speck of dust according to all the other answers. Perhaps the original answer shou have been "the thickness" but the width is far too long.

Answer 3

1 millimeter is equivalent to 0.001 meters or 0.039 inches.

Answer 4

None: 1000 milligrams in 1.0 gram (mass units) and 1000 millimeter in 1.0 metre (distance units). Mass is NOT distance.