8 kg is 8,000,000 mg
1.2 kg = 1200 mg
80 mg = 0.00008 kg
Answer1kg is equal to 1,000,000 mg.
250,000,000
0.51 kg = 510,000 milligrams.
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)
KHDGDCM that means 1 kg = 100,000 mg
1 kg = 1000000 mg
230 mg = 0.00023 kg
77 kg = 77000000 mg
1 mg/kg = 1 ppm 1 mg = 1000 micrograms (ug) so 10 ug/kg = 0.01 mg/kg = 0.01 ppm