1 kilogram = 1000 grams
1 gram = 1000 milligram
1 kilogram = 1000000 mg
8790 mg = 8790/1000000 kg = 0.008790 kg
The answer depends on the units for 8790. There a a different number of minutes in 8790 seconds and 8790 years!
1 kg = 1,000,000 mg
There is .230500 Kg in 230500 mg.
1.2 kg = 1200 mg
Since there are 1000 mg in 1 gram, and 1000 g in 1 kg, there are (1000 x 1000) mg in 1 kg, which is 1,000,000 mg in 1 kg. Or conversely, there are 0.000001 kg in 1 mg (that's 10-6 kg)
60 seconds = 1 minute so 8790 sec = 8790/60 = 146.5 minutes. Simple!
730 mg is 0.00073 kg
One million mg per kg
270,000,000 mg
112,000 mg
22,000,000 mg
592,000,000 mg