16.1997275 milligrams
30 milligrams is less than half of one grain. to be exact, 0.462970 grains.
1 grain = 64.891mg, therefore 150 grains is: 150 x 64.891mg = 9,733.65mg
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.
(1/8) grain = 8.09986375 milligrams FYI: Google "convert 1/8 grain to milligrams"
16.1997275 milligrams
10
16.1997275 milligrams
30 milligrams is less than half of one grain. to be exact, 0.462970 grains.
The weight of a grain is approximately 65 milligrams. Therefore, 0.3 mg would be equivalent to around 0.0046 grains.
1 grain = 64.891mg, therefore 150 grains is: 150 x 64.891mg = 9,733.65mg
179 x 1,000 = 179,000 grams x 1,000 = 179,000,000 milligrams 179 million milligrams
64.79891 mg to a grain In medicine one grain can be 60 or 65 mg.
One kilogram is equal to 1000 x 1000 = 1000000 milligrams. Therefore, 5.2 milligrams is equal to 5.2 x 1000000 = 5200000 milligrams.
1 gram = 1000 milligrams 8045 x 1000 = 8045000 milligrams
I would have to say half a miligram - one miligram at the most.