1 grain (gr) = 64.79891 mg (milligrams) = 0.06479891 g (grams)
According to Wikipedia, this is the metric (SI) definition since 1958.
1 gram = 15.432 358 353 grain
In the US, in medicine, the use of grains is disappearing and seems to be somewhat approximate: A 60 mg dose may be described as "1 grain", but you should expect 1 grain to be about 65 mg, or 0.065 grams.
There are also two specialized units called the 'pearl grain', used for weighing pearls, and the 'metric grain' used for diamonds, and these are 1/4 carat or 50 mg.
1/4 grain =15 mg1 grain = 60 mg
0.18 grains in 1 mg
There are approximately 64.8 milligrams in 1 grain.
1 mg equals how many grams?
1000 mg = 1 gramso 1000 mg of gold is equal to 1 gram of gold.
There are roughly 64.8 milligrams in a grain.
1000 mcg equals 1 mg.
1000 mcg equals 1 mg.
1000 mg equals 1 gm
1/150 grains = 0.432 mg
1 gram =15.4324 grains. Therefore, 5 grains is 325 mg
1 gr(grain) is equal to about 1/64th of a mg so 1 mg(milligram) is equal to 0.0154323584 gr(grains)