gr to mg | Grain to Milligram Converter

Grain

The grain or troy grain (symbol: gr) is a unit of mass and it is exactly equal to 64.79891 milligrams. One gram is thus approximately equivalent to 15.43236 grains. The unit formerly used by jewellers to measure pearls, diamonds, and other precious stones, called the jeweller's grain or pearl grain, is equal to 1⁄4 carat (50 mg; 0.77 gr). The grain was also the name of a traditional French unit equal to 53.115 mg. In both British Imperial units and United States customary units, there are precisely 7,000 grains per avoirdupois pound, and 5,760 grains per troy pound or apothecaries' pound.

Milligram

The milligram (symbol: mg) is the unit of mass in the International System of Units (SI). One milligram is equal to 10⁻³ gram. Milligram (mg) is among the most used units for prescribing medicines (for example, 25 mg of thyroxine or 500 mg of paracetamol).

gr to mg | Grains to Milligrams Table