Convert milligram to kilogram
1 mg = 0.000001 kg
1 mg = 0.000001 kg
1 mg in every mass unit
| unified atomic mass unit (dalton) | 6.0221e+20 u |
| picogram | 1,000,000,000 pg |
| nanogram | 1,000,000 ng |
| microgram | 1,000 μg |
| milligram | 1 mg |
| centigram | 0.1 cg |
| grain | 0.015432 gr |
| metric carat | 0.005 ct |
| gram | 0.001 g |
| pennyweight | 0.00064301 dwt |
| dram | 0.00056438 dr |
| ounce | 0.000035274 oz |
| troy ounce | 0.000032151 oz t |
| troy pound | 0.0000026792 lb t |
| pound | 0.0000022046 lb |
| kilogram | 0.000001 kg |
| stone | 1.5747e-07 st |
| slug | 6.8522e-08 slug |
| US hundredweight | 2.2046e-08 cwt |
| UK long hundredweight | 1.9684e-08 cwt (UK) |
| quintal | 1.0000e-08 q |
| US short ton | 1.1023e-09 ton |
| metric tonne | 1.0000e-09 t |
| UK long ton | 9.8421e-10 long ton |
| kilotonne | 1.0000e-12 kt |
| megatonne | 1.0000e-15 Mt |
| gigatonne | 1.0000e-18 Gt |
| Earth mass | 1.6744e-31 Mearth |
| solar mass | 5.0291e-37 Msun |
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 |