Convert Milligrams to Kilograms

Enter the weight in milligrams below to get the value converted to kilograms.

Results in Kilograms:

1 mg = 1.0E-6 kg

Do you want to convert kilograms to milligrams?

How to Convert Milligrams to Kilograms

To convert a milligram measurement to a kilogram measurement, multiply the weight by the conversion ratio. One milligram is equal to 1.0E-6 kilograms, so use this simple formula to convert:

kilograms = milligrams × 1.0E-6

The weight in kilograms is equal to the milligrams multiplied by 1.0E-6.

For example, here's how to convert 5 milligrams to kilograms using the formula above.

5 mg = (5 × 1.0E-6) = 5.0E-6 kg

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

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.

Kilograms

One kilogram is equal to the mass of the platinum-iridium bar which is stored in Sèvres, France. It is roughly equal to the mass of 1,000 cubic centimeters of water.

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.

Milligram Measurements and Equivalent Kilogram Conversions

Common milligram values converted to the equivalent kilogram value
Milligrams	Kilograms
1 mg	0.000001 kg
2 mg	0.000002 kg
3 mg	0.000003 kg
4 mg	0.000004 kg
5 mg	0.000005 kg
6 mg	0.000006 kg
7 mg	0.000007 kg
8 mg	0.000008 kg
9 mg	0.000009 kg
10 mg	0.00001 kg
11 mg	0.000011 kg
12 mg	0.000012 kg
13 mg	0.000013 kg
14 mg	0.000014 kg
15 mg	0.000015 kg
16 mg	0.000016 kg
17 mg	0.000017 kg
18 mg	0.000018 kg
19 mg	0.000019 kg
20 mg	0.00002 kg
21 mg	0.000021 kg
22 mg	0.000022 kg
23 mg	0.000023 kg
24 mg	0.000024 kg
25 mg	0.000025 kg
26 mg	0.000026 kg
27 mg	0.000027 kg
28 mg	0.000028 kg
29 mg	0.000029 kg
30 mg	0.00003 kg
31 mg	0.000031 kg
32 mg	0.000032 kg
33 mg	0.000033 kg
34 mg	0.000034 kg
35 mg	0.000035 kg
36 mg	0.000036 kg
37 mg	0.000037 kg
38 mg	0.000038 kg
39 mg	0.000039 kg
40 mg	0.00004 kg