Milligrams to Kilograms
Convert mg to kg quickly with this free online calculator. The page explains the conversion rule, gives practical examples and provides a quick reference table.
1 milligram equals 0.000001 kilograms.
How to use the Milligrams to Kilograms
- Enter the number you want to convert.
- Confirm the source unit shown beside the input.
- Choose decimal precision if you need more or less detail.
- Read the converted result.
- Copy the result when you need to use it elsewhere.
How the conversion works
1 milligram equals 0.000001 kilograms.
For a simple fixed-factor conversion, the calculator multiplies the entered value by the stated factor. Temperature scales and certain specialized tools use their specific mathematical relationship instead.
Common mg to kg conversions
| mg | kg |
|---|---|
| 1 mg | 0.000001 kg |
| 2 mg | 0.000002 kg |
| 5 mg | 0.000005 kg |
| 10 mg | 0.00001 kg |
| 20 mg | 0.00002 kg |
| 50 mg | 0.00005 kg |
Example
For example, entering 1 mg gives approximately 0.000001 kg using the rule above. Change the input to test your own value.
Frequently asked questions
Accuracy note: This calculator is a practical reference. For regulated, safety-critical or specialized work, verify the result against the applicable standard.
Page reviewed: August 24, 2026.