Density is mass divided by volume (ρ = m/V). It tells you how much a given volume of a substance weighs — for example, 1 litre of water has a mass of about 1 kg.

How much is 1 g/cm³ in kg/m³?

1 g/cm³ = 1000 kg/m³. That is also the density of water at room temperature — a handy reference point.

Is g/mL the same as g/cm³?

Yes. 1 millilitre = 1 cubic centimetre, so g/mL and g/cm³ are identical (both = 1000 kg/m³). The imperial pound per cubic foot: lb/ft³ ≈ 16.02 kg/m³.

Category · 5 units

Density

Density converter - convert between kilograms per cubic meter, grams per cubic centimeter, grams per milliliter, pounds per cubic foot and grams per liter.

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kilograms per cubic meter · ≈ 100 kg/m³ (base)

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kg/m³kilogram per cubic meter100

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Good to know

A glowing emerald balance scale holding a cube of lead and a cloud of feathers, wrapped in a geometric grid, against a cosmic nebula in violet and magenta

Density

A kilogram of feathers and a kilogram of lead — why the scale disagrees

The schoolyard riddle has three floors. On the first, both kilograms weigh the same. On the second, a pound of feathers turns out to be heavier than a pound of gold. On the third, a scale in an ordinary room shows sixty grams between them — and the air is to blame. A story about density: the quantity that divorced the litre from the cubic decimetre for 63 years, floats ice on water, and demolishes the legend of Archimedes' bathtub.

15 min