Gram

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The gram (symbol: g) is the main unit of mass in the Cegesimal System of Units, and the unit of weight in the metric system. It was originally defined as the weight of one cubic centimeter of water at 3.98 °C, and is currently defined as one thousandth of a kilogram, the base unit of mass in the International System of Units.

1 g = 0.001 kg = 10−3kg

Equivalences

1 gram is equal to:

  • 1000 mg
  • 100 cg
  • 10 dg
  • 0.1 dag
  • 0.01 hg
  • 0.001 kg

Multiples and submultiples of the gram

The Moon has a mass of 73.49 Yg (yottagramos).
Multiple International Gram System (g)
Submultiplos Multiple
Value Symbol Name Value Symbol Name
10−1 g dg decigram 101 g dag decagram
10−2 g cg centigram 102 g hg hectogram
10−3 g mg milligram 103 g kgkilogram
10−6 g μg microgram 106 g Mg megagram
10−9 g ng nanogram 109 g Gg gigagram
10−12 g pg picogram 1012 g Tg teragram
10−15 g fg femtogram 1015 g Pg petagram
10−18 g ag attogram 1018 g Eg exagram
10−21 g zg zeptogram 1021 g Zg zettagramo
10−24 g yg Yoctogram 1024 g Yg Yottagramo
10−27 g r rontogram 1027 g Rg ronnagram
10−30 g qg Quectogram 1030 g Qg quettagramo
The most common prefixes appear in bold.

Multiples

  • yottagramoYg), 1 Yg = 1 000 000 000 000 000 000 000 g = 1024g
  • zettagramo (Zg), 1 Zg = 1 000 000 000 000 000 g = 1021g
  • exagram (Eg), 1 Eg = 1 000 000 000 000 g = 1018g
  • petagram (Pg), 1 Pg = 1 000 000 000 g = 1015g
  • teragramTg), 1 Tg = 1 000 000 000 g = 1012g
  • gigagram (Gg), 1 Gg = 1 000 000 g = 109g
  • megagram or tonne (Mg or t), 1 Mg or 1 t = 1 000 g = 106g
  • metric fifth (q), 1 q = 100 000 g = 105g
  • kilogram (kilogram)kg), 1 kg = 1000 g = 103 g
  • hectogram (hg), 1 hg = 100 g = 102 g
  • decagram (dag), 1 dag = 10 g = 101g

Submultiples

  • decigram (dg), 1 dg = 0.1 g (one tenth gram) = 10−1g
  • centigram (cg), 1 cg = 0.01 g (an hundredth gram) = 10−2g
  • milligram (mg), 1 mg = 0.001 g (a thousandth of gram) = 10−3g
  • microgram (μg), 1 μg = 0,000 001 g (a millionth of gram) = 10−6g
  • nanogram (ng), 1 ng = 0,000 000 001 g (a billionth of gram) = 10−9g
  • picogrampg), 1 pg = 0,000 000 001 g (one billionth of gram) = 10−12g
  • femtogram (fg), 1 fg = 0,000 000 000 001 g (a billionth of gram) = 10−15g
  • attogram (ag), 1 ag = 0,000 000 000 000 001 g (a trillionth of gram) = 10−18g
  • zeptogram (zg), 1 zg = 0,000 000 000 000 000 000 001 g (a thousandth of gram) = 10−21g
  • yoctogram (yg), 1 yg = 0,000 000 000 000 000 000 000 001 g (quabillionthium gram) = 10−24g

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