Copying and pasting this sentence in google returns .2 milligrams, which is the correct answer.
0.2 milligrams is 200 micrograms. 1 milligram is 1x10^-3 grams 1 microgram is 1x10^-6 grams
2mg there are 1000 micrograms per milligram, so divide the 200 micrograms by 1000mg to get the answer. Or, just know that you move the decimal three places to the left.
Micrograms x 0.001 = milligrams
1 microgram = 0.001 milligrams !!
0.001 a milligram is 1,000 of a gram, 1 microgram is 1,000,000th of a gram.