1 milligram = 1000 micrograms. You now have all the information required to answer this and similar questions.
1 mg is equal to 1000 mcg
2.4 grams equal 2400 mg
2100mg equals 2,100,000 mcg (1000mcg per mg).
0.001mg per mcg
mcg is the abbreviation for micrograms. 1,000 micrograms = 1 milligram (mg), so 40 mcg = .040 mg
300 mcg is equal to 0.3 mg
600mg is equal to 600000mcg (1000mcg per mg).
1000 mcg = 1 mg so 300 mcg = 300/1000 = 0.3 mg. Simple!
how many milligrams in b12 that i am taking of 2,500 mcg
1000mg equal 1000000mcg
0.4mg =400mcg.
0.001mg per mcg