Microgram

Microgram
A nutrition facts label displaying, for example, the amount of folic acid in micrograms
General information
Unit systemSI
Unit ofmass
Symbolμg

In the metric system, a microgram or microgramme is a unit of mass equal to one millionth (1×10−6) of a gram. The unit symbol is μg according to the International System of Units (SI); the recommended symbol in the United States and United Kingdom when communicating medical information is mcg. In μg, the prefix symbol for micro- is the Greek letter μ (mu).

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