16.1997275 milligrams
30 milligrams is less than half of one grain. to be exact, 0.462970 grains.
Assuming you mean the obsolete mass unit rather than a grass seed. one grain is 64.799 milligrams.
I would have to say half a miligram - one miligram at the most.
1,000 milligrams = 1 gram about 450 grams = 1 pound So about 450,000 milligrams in 1 pound. Of the choices you listed, the best match for a grain of salt has to be 1 milligram.
10
(1/8) grain = 8.09986375 milligrams FYI: Google "convert 1/8 grain to milligrams"
milligrams
16.1997275 milligrams
30 milligrams is less than half of one grain. to be exact, 0.462970 grains.
A grain of salt is typically measured in milligrams (mg) or micrograms (mcg). One grain of salt is equivalent to approximately 58 milligrams.
16.1997275 milligrams
64.79891 mg to a grain In medicine one grain can be 60 or 65 mg.
The mass of a single grain of rice is typically around 25-30 milligrams.
Assuming you mean the obsolete mass unit rather than a grass seed. one grain is 64.799 milligrams.
I would have to say half a miligram - one miligram at the most.
There are approximately 64.8 milligrams in 1 grain.