Grams to all other weight unit conversions


Originally defined as the absolute weight of a volume of pure water equal to the cube of the hundredth part of a metre [1 cm3], and at the temperature of melting ice
However, in a reversal of reference and defined units, a gram is now defined as one thousandth of the SI base unit, the kilogram, or 1×10−3kg, which itself is defined by the International Bureau of Weights and Measures, not in terms of grams, but by taking the fixed numerical value of the Planck constant h to be 6.62607015×10−34 kgm2s−1

SI Unit:

1 gram (g) = 15.4323583529 grains (gr)
1 grain (gr) = 0.06479891 grams (g)


  • Gram widely used to measure ingredients and groceries.
  • Standard and legal requirement for nutrition labels on food products.

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Standard Units
Carats (ct)
Kilograms (kg) {{kg}}
Metric Tons (t) {{t}}
Micrograms {{micrograms}}
Milligrams {{mg}}
Ounces (oz) {{oz}}
Pounds (lb) {{lb}}
Other Units
Grain (gr) {{gr}}
Pennyweight (dwt) {{dwt}}
Stones (st) {{st}}
Troy Ounces (toz) {{toz}}
Troy Pounds (tlb) {{tlb}}