How to convert milligrams to kilograms
To convert milligrams to kilograms, use the formula kg = mg × 0.000001. In other words, multiply the number of milligrams by 0.000001 to get the equivalent in kilograms. For example, 5 mg equals 0.000005 kg.
MG to KG Converter
Convert milligrams to kilograms instantly. 5 mg = 0.000005 kg.
1 mg = 0.000001 kg
| MG (mg) | KG (kg) |
|---|---|
| 1 mg | 0.000001 kg |
| 2 mg | 0.000002 kg |
| 3 mg | 0.000003 kg |
| 4 mg | 0.000004 kg |
| 5 mg | 0.000005 kg |
| 6 mg | 0.000006 kg |
| 7 mg | 0.000007 kg |
| 8 mg | 0.000008 kg |
| 9 mg | 0.000009 kg |
| 10 mg | 0.00001 kg |
| 15 mg | 0.000015 kg |
| 20 mg | 0.00002 kg |
| 25 mg | 0.000025 kg |
| 30 mg | 0.00003 kg |
| 40 mg | 0.00004 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 |
| 1,000 mg | 0.001 kg |
Milligram and Kilogram
The milligram (mg) and the kilogram (kg) are both units of weight. This page gives you an instant, exact conversion between them, a reference table for the most common values, and the underlying formula so you can check the maths yourself. All calculations run in your browser — nothing you type is sent anywhere.
Need to go the other way? Use the KG to MG converter. For all units at once, try the full Weight Converter.
Frequently Asked Questions
How do I convert milligrams to kilograms?
Use the formula kg = mg × 0.000001. For example, 5 mg equals 0.000005 kg. Just enter your value in the converter above to get an instant result.
What is 1 milligram in kilograms?
1 mg = 0.000001 kg. You can multiply any number of milligrams by this figure to convert it, or use the calculator above for exact results.
How do I convert kilograms back to milligrams?
Use the reverse conversion: 1 kg = 1,000,000 mg. Our KG to MG converter does this for you.