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