Mg to kg
One mg equals 0.000001 kg. Type any number and the answer appears as you type — the maths happens in your browser.
Result
The same value in every unit
| Unit | Value |
|---|
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Common values
| mg | kg |
|---|---|
| 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 |
| 100 mg | 0.0001 kg |
| 500 mg | 0.0005 kg |
| 1000 mg | 0.001 kg |
How to use
- Enter the number of mg in the field.
- The result in kg updates on every keystroke.
- Use the table below for the values people look up most often.
Formula and reverse conversion
The formula
To convert by hand: kg = mg ÷ 1000000. Going back the other way, one kg is 1000000 mg.
Metric units differ by powers of ten
Both units belong to the metric system, so the conversion is a shift of the decimal point: the factor is a power of ten and nothing is lost to rounding.
kg = mg ÷ 1000000
Frequently asked questions
How many kg are in one mg?
One mg is 0.000001 kg.
How do I convert mg to kg?
Multiply by the factor: kg = mg ÷ 1000000.
Is the result exact?
The factors are the exact legal definitions, and up to ten significant digits are kept in the answer. Rounding happens only in the display.
How do I convert kg back to mg?
One kg is 1000000 mg — or open the reverse page linked below.