How to convert Milligrams to Kilograms
1 milligram (mg) is equal to 1/1000000 kilograms (kg).
1 mg = (1/1000000) kg = 10-6 kg = 0.000001 kg
The mass m in kilograms (kg) is equal to the mass m in milligrams (mg) divided by 1000000:
m(kg) = m(mg) / 106 = m(mg) / 1000000
Example
Convert 5mg to kilograms:
m(kg) = 5 mg / 1000000 = 0.000005 kg