Convert 1 mg to kg
1 milligram = 0.000001 kilograms
Sumwise · Maintained by Theo Abbott (pen name) · automated checks · Data: exact arithmetic; unit definitions from NIST SP 811 · Updated · How the checks work
How to convert milligrams to kilograms
- Formula:
kilograms = milligrams × 0.000001 - Put in the value: 1 milligram.
- Result: 0.000001 kilograms.
Milligrams to kilograms table
| milligrams | kilograms |
|---|---|
| 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 |
| 100 mg | 0.0001 kg |
| 500 mg | 0.0005 kg |
| 1,000 mg | 0.001 kg |
Converting the other way: kilograms to milligrams
milligrams = kilograms × 1,000,000. So 0.000001 kilograms is back to 1 milligram; one kilogram is 1,000,000 milligrams. See the kilograms to milligrams table.
Quick estimate in your head
For a rough answer, multiply by about 0.000001: 1 × 0.000001 ≈ 0.000001 kg, against the exact 0.000001 kg (0.0% out). Good enough to check that a calculated result is sensible.
Common mistakes
The usual slip is using the factor the wrong way round. A milligram is smaller than a kilogram, so the number of kilograms must come out smaller than the number of milligrams. If your answer goes the other way, divide instead of multiplying.
About the units
Milligram (mg) and kilogram (kg) are both units of mass. One milligram equals 0.000001 kilograms, and one kilogram equals 1,000,000 milligrams. Results on this page are rounded for display; the conversion itself uses the exact definitions.
Mass conversions come up in cooking and baking, shipping and luggage limits, body weight, medicine doses and buying food by weight.
1 milligram in other units
The most readable unit for this amount is milligrams (1).
- 0.001 g
- 0.000001 kg
- 1e-9 t
- 0.00003527 oz
- 0.0000022 lb
- 1.57473e-7 st
- 1.102311e-9 ton
- 0.005 ct
How answers are calculated and checked: methodology.
Questions
How many kilograms are in 1 milligram?
0.000001 kilograms.
What is the formula to convert milligrams to kilograms?
kilograms = milligrams × 0.000001
How many kilograms are in one milligram?
One milligram is 0.000001 kilograms, so multiply any number of milligrams by 0.000001.
Is 1 mg more than 1 kg?
No. 1 milligram is 0.000001 kilograms, which is less than 1 kilogram.
How do I convert milligrams to kilograms in a spreadsheet?
Put the number of milligrams in A1 and type =A1*0.000001 in the next cell. Fill the formula down to convert a whole column.