730 mg is 0.00073 kg
400 g = 400000 mg
1,000,000 mg = 1 kg
1 kg is 1,000,000 mg
there are 1,000,000 mg in a kg
1,000,000 mg in 1 kg.
20000 mg = 0.02 kg
1200 mg = 0.0012 kg
500 mg = 0.0005 kg
1,000 mg = 1.000 kg450 mg = 0.450 kg
1 million mg per kg
There are 1 million milligrams (mg) in one kilogram (kg).