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Gram (unit)

A gram (older spelling gramme) is a unit of measurement of mass, and is defined in the SI system of units as one thousandth of a kilogram. See 1 E -3 kg for comparisons with other masses.

The symbol for gram is g. Sometimes gm is incorrectly used.

A cubic centimetre (10-6 m3) of water has a mass of approximately one gram. It is approximately equal to the mass of a paper clip.

It is not an SI base unit, although it is a base unit of the cgs system of units.

See also SI prefix, conversion of units

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