Convert milligram to kilogram
1 mg = 0.000001 kg
1 mg = 0.000001 kg
1 mg in every mass unit
| microgram | 1,000 μg |
| milligram | 1 mg |
| gram | 0.001 g |
| kilogram | 0.000001 kg |
| metric tonne | 1.00e-09 t |
| ounce | 0.0000353 oz |
| pound | 0.0000022 lb |
| stone | 1.57e-07 st |
| US short ton | 1.10e-09 ton |
| grain | 0.0154 gr |
| unified atomic mass unit (dalton) | 6.02e+20 u |
How the conversion works
Multiply by 0.000001 to go from milligram to kilogram, or divide by it to go back. Every conversion on this site routes through the SI value (kg) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? kilogram to milligram — 1 kg = 1,000,000 mg.
milligram to kilogram — common values
| 1 mg | 0.000001 kg |
| 2 mg | 0.000002 kg |
| 3 mg | 0.000003 kg |
| 5 mg | 0.000005 kg |
| 10 mg | 0.00001 kg |
| 15 mg | 0.000015 kg |
| 20 mg | 0.00002 kg |
| 25 mg | 0.000025 kg |
| 50 mg | 0.00005 kg |
| 75 mg | 0.000075 kg |
| 100 mg | 0.0001 kg |
| 250 mg | 0.00025 kg |
| 500 mg | 0.0005 kg |
| 1000 mg | 0.001 kg |