What measurement does µg represent?
µg = mcg = microgram = 1/1,000 of a milligram = 1/1,000,000 of a gram
“µ” is the Greek letter ‘mu’ which is the scientific symbol used to abbreviate the word micro. A microgram is 1/1,000 of a milligram or 1/1,000,000 of a gram. Sometimes the letters mcg will also be used as an abbreviation for microgram.