The cubic metre (symbol m³) is the SI derived unit of volume. It is the volume of a cube with edges one metre in length. Older, now unofficial, equivalents were the stere and the kilolitre.

1 cubic metre is equal to:

  • 1,000 litres
  • 1,000 cubic decimetres
  • 1,000,000 cubic centimetres
  • 35.3 cubic feet
  • 6.29 oil barrels

See 1 E0 m³ for a comparison with other volumes, also orders of magnitude.

A cubic metre of pure water at a temperature of 4 degrees Celsius and standard atmospheric pressure has a mass close to 1000 kg (one tonne).

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