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Micrograms (mcg) - Weight / Mass Conversions

A microgram is a unit of mass in the Metric System. The symbol for microgram is mcg or μg.

The base unit for a microgram is gram and the prefix is micro. The prefix micro is derived from the Greek mikrós meaning small and is symbolized as mc or μ. Micro denotes a factor of one millionth (10-6) which means that there are 1,000,000 micrograms in a gram.

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