One kg = 1000 grams. So one gram is 10^-3 kilograms. One mili gram is 10^-3 gram = 10^-6 kg. Kilograms and grams are both the metric units of mass.
500,000 mg
166000000 mg
Four million milligrams is four kilograms.
None whole . 15 mg is 0.0015 kilo
12,000 milligrams = 12 grams = 0.012 kilograms
1.4 kilograms is 1,400,000 milligrams.kg x 1,000,000 = mg
25 kilograms is 25000000mg @1 million mg per kilogram
60 mg=0.00006 kg
0.000076 kg = 76 mg
28 kg = 28000000 mg
400 mg = 0,4 kg
32,000 mg = 0.032 kg