4000
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4
4 milligrams = 0.004 gram
4 900 000 milligrams in 4900 grams (1000 milligram per gram).
1 gram = 1,000 milligrams 2 grams = 2,000 milligrams 3 grams = 3,000 milligrams 3.5 grams = 3,500 milligrams
2500 grams = 2,500,000 milligrams