16.1997275 milligrams
30 milligrams is less than half of one grain. to be exact, 0.462970 grains.
something similar to one grain of table salt.
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.
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.
16.1997275 milligrams
64.79891 mg to a grain In medicine one grain can be 60 or 65 mg.
something similar to one grain of table salt.
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.
a grain