**Kilogram per cubic metre** is an SI derived unit of density, defined by mass in kilograms divided by volume in cubic metres. The official SI symbolic abbreviation is kg·m^{−3}, or equivalently either kg/m^{3} or ${\tfrac {\text{kg}}{{\text{m}}^{3}}}\!$.^{[1]}

## Conversions

1 kg/m^{3} is equivalent to:

- = 0.001 g/cm
^{3} (exactly)
- ≈ 0.06243 lb/ft
^{3} (approximately)
- ≈ 0.1335 oz/gal (approximately)

1 g/cm^{3} = 1000 kg/m^{3} = 1,000,000 g/m^{3} (exactly)

1 lb/ft^{3} ≈ 16.02 kg/m^{3} (approximately)

1 oz/gal ≈ 7.489 kg/m^{3} (approximately)

## Relation to other measures

The kilogram was originally based on the mass of one litre of water, thus the density of water is about 1000 kg/m^{3} or 1 g/cm^{3}. In chemistry, g/cm^{3} is more commonly used.

## See also

## References

## External links