Convert kg to mg
Kilograms to milligrams. Enter a value to convert, or use the kg to mg chart further down the page.
1 kilogram equals 1,000,000 milligrams. Going the other way, 1 milligram = 0.000001 kilograms.
How to convert kg to mg
To convert kilograms to milligrams, multiply the kilogram value by 1000000. You can also divide by 0.000001 to get the same answer.
mg = kg × 1000000
Worked example
Convert 15 kg to milligrams:
15 kg = 15,000,000 mg
kg to mg conversion chart
Use this kg to mg table for quick reference without typing anything.
| kilograms (kg) | milligrams (mg) |
|---|---|
| 0.01 kg | 10,000 mg |
| 0.1 kg | 100,000 mg |
| 1 kg | 1,000,000 mg |
| 2 kg | 2,000,000 mg |
| 3 kg | 3,000,000 mg |
| 5 kg | 5,000,000 mg |
| 10 kg | 10,000,000 mg |
| 20 kg | 20,000,000 mg |
| 50 kg | 50,000,000 mg |
| 100 kg | 100,000,000 mg |
| 1,000 kg | 1,000,000,000 mg |
What is a kilogram?
The kilogram is the SI base unit of mass. Since 2019 it has been defined by fixing the Planck constant, replacing the platinum-iridium cylinder held near Paris.
What is a milligram?
The milligram is one thousandth of a gram and is the standard unit for stating medicine dosages and micronutrient content.
Frequently asked questions
How many mg are in a kilogram?
1 kg equals 1,000,000 mg. Going the other way, 1 mg is 0.000001 kg.
How do you convert kg to mg?
To convert kilograms to milligrams, multiply the kilogram value by 1000000. You can also divide by 0.000001 to get the same answer.
What is 10 kg in mg?
10 kg equals 10,000,000 mg. The conversion chart on this page lists the other values people look up most often.
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