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# Grams

The gram (alternative spelling: gramme; SI unit symbol: g) is a metric system unit of mass. Originally defined as "the absolute weight of a volume of pure water equal to the cube of the hundredth part of a metre, and at the temperature of melting ice" (later at 4 °C, the temperature of maximum density of water). However, in a reversal of reference and defined units, a gram is now defined as one one-thousandth of the SI base unit, the kilogram, or 1×10^−3 kg, which itself is now defined, not in terms of grams, but as being equal to the mass of a physical prototype of a specific alloy kept locked up and preserved by the International Bureau of Weights and Measures.

The only unit symbol for gram that is recognised by the (SI) is "g" following the numeric value with a space, as in "45 g" to stand for "45 grams" in the English language. The SI does not support the use of abbreviations such as "gr" (which is the symbol for grains), "gm" ("g⋅m" is the SI symbol for gram-metre) or "Gm" (the SI symbol for gigameter).

The gram (SI unit symbol: g) is a metric system unit of mass. Originally defined as "the absolute weight of a volume of pure water equal to the cube of the hundredth part of a meter, and at the temperature of melting ice" (later 4 °C, the so called triple-point of water where ice, liquid, and vapor can undergo phase transformation from any one to any other phase—the reason it was attractive as a standard). However, in a reversal of reference and defined units, a gram is now defined as one one-thousandth of the SI base unit, the kilogram, or 1×10−3 kg, which itself is now defined, not in terms of grams, but as being equal to the mass of a physical prototype of a specific alloy kept locked up and preserved by the International Bureau of Weights and Measures. This is in the tradition by which many customary local reference standard 'stones', lengths (objects) and weights were required to periodically undergo comparison with the official nations standard referents, usually with a particular periodicity defined by the countries statuate laws.

The gram is today the most widely used unit of measurement for non-liquid ingredients in cooking and grocery shopping worldwide. Most standards and legal requirements for nutrition labels on food products require relative contents to be stated per 100 g (3.5274 ounces) of the product, such that the resulting figure can also be read as a percentage by weight.

Grams
Symbol/abbreviation: g
Unit of: MASS WEIGHT
MASS-WEIGHT's base unit: kilograms (SI Unit)
In relation to the base unit (kilograms), 1 Grams = 0.001 kilograms.
[Conversion table] 1 Grams (g) to all mass-weight units
1 g= 6.0221366553E+23 atomic mass unit (u)
1 g= 1.0E+18 attograms (ag)
1 g= 5.71017438873E-6 blobs (blob)
1 g= 1.0E-6 british tonnes (t [British])
1 g= 5 carats (ct)
1 g= 4.87336559501 carats troy (ct [troy])
1 g= 100 centigrams (cg)
1 g= 0.000314946088836 cloves UK (clove)
1 g= 6.02217364335E+23 daltons (Da)
1 g= 0.1 decagrams (da g)
1 g= 10 decigrams (dg)
1 g= 0.1 dekagrams (dag)
1 g= 2.9908008955E+23 deuteron mass (D)
1 g= 0.564383391193 drams (dr)
1 g= 0.257205972549 drams apothecaries (dr [apothecaries])
1 g= 0.564383391193 drams avoirdupois (dr [avoirdupois])
1 g= 0.257205972549 drams troy (dr [troy])
1 g= 1.6733601071E-28 earth mass (M∅)
1 g= 1.097768383E+27 electron mass (me)
1 g= 1.0E-18 exagrams (Eg)
1 g= 1.0E+15 femtograms (fg)
1 g= 1.0E-9 gigagrams (Gg)
1 g= 15.4323607345 grains (gr)
1 g= 1 grams (g)
1 g= 0.01 hectograms (hg)
1 g= 1.96841305522E-5 hundredweight UK (cwt UK)
1 g= 2.20462262185E-5 hundredweight US (cwt US)
1 g= 0.000101971621298 hyl (hyl)
1 g= 9.84203533291E-7 imperial tons (t [Imperial])
1 g= 0.001 kilograms (kg)
1 g= 2.20462262185E-6 kilopounds (kip)
1 g= 9.84203533291E-7 long tons UK (t [UK])
1 g= 1.0E-6 megagrams (Mg)
1 g= 1.0E-6 metric tons (t [Metric])
1 g= 1000000 micrograms (μg)
1 g= 1000 milligrams (mg)
1 g= 5.30917249273E+24 muon mass (mu)
1 g= 100000000 nanograms (ng)
1 g= 5.97040375333E+23 neutron mass (n0)
1 g= 0.00980665 newtons[Earth gravity] (N)
1 g= 0.0352739907229 ounces (oz)
1 g= 0.643014947911 pennyweights (pwt)
1 g= 1.0E-15 petagrams (Pg)
1 g= 1.0E+12 picograms (pg)
1 g= 45940.8924689 planck mass (mp)
1 g= 0.00220462442018 pounds (lbs)
1 g= 5.97863320552E+23 proton mass (p+)
1 g= 7.87365222089E-5 quarters UK (1/4[UK])
1 g= 8.8184904874E-5 quarters US (1/4[US])
1 g= 1.0E-5 quintals (q)
1 g= 6.05665555453E-6 sacks (sack)
1 g= 0.771617917647 scruples (℈)
1 g= 1.10231131092E-6 short tons US (t)
1 g= 5.71014715481E-6 slinches (sln)
1 g= 6.85217658578E-5 slugs (slug)
1 g= 5.0000000025E-34 solar mass (Mo)
1 g= 0.000157473123275 stones (st)
1 g= 0.000157473044418 stones UK (st [UK])
1 g= 0.000176369809748 stones US (st [US])
1 g= 5.0000000025E-34 sun mass (M☉)
1 g= 1.0E-12 teragrams (Tg)
1 g= 7.87365222089E-5 tods (tod)
1 g= 1.0E-6 tonnes UK (t [tonnes-UK])
1 g= 9.84203533291E-7 tons IMPERIAL (t [IMPERIAL])
1 g= 9.84203533291E-7 tons LONG UK (t [LONG UK])
1 g= 1.0E-6 tons METRIC (t [METRIC])
1 g= 1.10231131092E-6 tons SHORT US (t [SHORT-US])