Convert Milligrams to kilograms
1 milligram = 0.000001 kilograms · kg = mg ÷ 1,000,000
When you need this conversion
This conversion goes from milligrams, the unit used for medication doses and nutrition labels, to kilograms, the SI base unit used worldwide for body weight and shipping. Both measure the same physical quantity, so the conversion is exact — the difference is which unit your source, tool, or region happens to use.
Milligrams to kilograms conversion table
| Milligrams (mg) | Kilograms (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 |
| 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 |
The formula
kg = mg ÷ 1,000,000Because both units measure weight, the conversion is a single multiplication by a fixed factor. That factor never changes, so the result is exact.
Convert the other way
Kilograms to milligrams →Related weight conversions
- Pounds to kilograms
- Stones to kilograms
- Grams to ounces
- Grams to carats
- Kilograms to pounds
- Kilograms to stones
- Metric tons to US tons
- Ounces to grams
- US tons to metric tons
- Carats to grams
- Milligrams to grams
- Milligrams to metric tons
Frequently asked questions
- How many kilograms are in a milligram?
- There are 0.000001 kilograms in 1 milligram. The formula is kg = mg ÷ 1,000,000.
- How do you convert milligrams to kilograms?
- Use the formula kg = mg ÷ 1,000,000. For example, 10 milligrams equals 0.00001 kilograms.
- Is the milligrams to kilograms conversion exact?
- Yes. Milligrams and kilograms are both units of weight, related by an exact defined factor. Displayed results are rounded for readability.
- What is mg short for?
- mg is the standard symbol for milligram. kg is the symbol for kilogram.