To convert a kilogram measurement to a milligram measurement, multiply the weight by the conversion ratio.

Since one kilogram is equal to 1,000,000 milligrams, you can use this simple formula to convert:


How Many Milligrams are in a Kilogram?

There are 1,000,000 milligrams in a kilogram, which is why we use this value in the formula above.

1 kg = 1,000,000 mg

Kilograms and milligrams are both units used to measure weight. Keep reading to learn more about each unit of measure.

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Kilograms

The definition of the kilogram changed in 2019. One kilogram was previously equal to the mass of the platinum-iridium bar, known as the International Prototype of the Kilogram, which was stored in Sèvres, France.

The 2019 SI brochure now defines the kilogram using the Planck constant, and it is defined using the meter and second.<1> It is roughly equal to the mass of 1,000 cubic centimeters of water.

See more: What Does The Name Aimee Mean ? What Does Aimee Mean

The kilogram, or kilogramme, is the SI base unit for weight and is also a multiple of the gram. In the metric system, "kilo" is the prefix for 103. Kilograms can be abbreviated as kg; for example, 1 kilogram can be written as 1 kg.

Milligrams

The milligram is the mass equal to 1/1,000 of a gram, or 0.0154 grains.

The milligram, or milligramme, is an SI unit of weight in the metric system. In the metric system, "milli" is the prefix for 10-3. Milligrams can be abbreviated as mg; for example, 1 milligram can be written as 1 mg.


Kilogram to Milligram Conversion Table

Kilogram measurements converted to milligrams Kilograms Milligrams
0.000001 kg 1 mg
0.000002 kg 2 mg
0.000003 kg 3 mg
0.000004 kg 4 mg
0.000005 kg 5 mg
0.000006 kg 6 mg
0.000007 kg 7 mg
0.000008 kg 8 mg
0.000009 kg 9 mg
0.0000001 kg 0.1 mg
0.000001 kg 1 mg
0.00001 kg 10 mg
0.0001 kg 100 mg
0.001 kg 1,000 mg
0.01 kg 10,000 mg
0.1 kg 100,000 mg
1 kg 1,000,000 mg

References

International Bureau of Weights and Measures, The International System of Units, 9th Edition, 2019, https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-EN.pdf

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