Weight converter: milligram → kilogram
Facts about the Milligram
The milligram (mg) is one-thousandth of a gram and is primarily used for measuring very small quantities. It is especially important in pharmacology, chemistry, and dietary supplements where precision is essential. For example, many medications list active ingredients in milligrams.
Facts about the Kilogram
The kilogram (kg) is the base unit of mass in the International System of Units (SI). Defined originally as the mass of a liter of water, it was later represented by a platinum-iridium prototype kept in France. In 2019, it was redefined using Planck's constant, linking mass to a fundamental constant of nature. Kilograms are widely used for weighing groceries, people, and cargo worldwide.