Weight Converter
Milligram
Definition: A milligram (symbol: mg) is a metric unit of mass equal to one-thousandth of a gram and one-millionth of a kilogram.
History/origin: The milligram is part of the International System of Units (SI). The prefix "milli-" indicates the division of the base unit by one thousand.
Current use: Milligrams are used almost exclusively in pharmacy, medicine, and chemistry to measure very small quantities of substances, such as the active ingredients in tablets.
Kilogram
Definition: The kilogram (symbol: kg) is the base unit of mass in the International System of Units (SI). It is defined by taking the fixed numerical value of the Planck constant.
History/origin: For over 100 years, the kilogram was defined by a physical object called the "International Prototype of the Kilogram" (IPK), before being redefined by physics in 2019.
Current use: It is the most common unit for measuring weight globally, used for everything from human body weight and groceries to industrial shipping.
Milligram to Kilogram Conversion Table
| Milligram [mg] | Kilogram [kg] |
|---|---|
| 0.01 mg | 0.00000001 kg |
| 0.1 mg | 0.0000001 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 |
| 20 mg | 0.00002 kg |
| 50 mg | 0.00005 kg |
| 100 mg | 0.0001 kg |
| 1000 mg | 0.001 kg |
How to Convert Milligram to Kilogram
1 mg = 0.000001 kg
1 kg = 1000000 mg
Example: convert 15 mg to kg:
15 mg = 15 × 0.000001 kg = 0.000015 kg
Did You Know?
- Did you know? Until 2019, the Kilogram was defined by a physical platinum-iridium cylinder kept in a vault in France. Now, it is defined by a constant of nature called the Planck constant!