**Full name:** microgram

**Plural form:** micrograms

**Symbol:** ug

**Alternate spelling:** mcg

**Category type:** weight

**Scale factor:** 1.0E-9

The SI base unit for mass is the kilogram.
The SI derived unit for weight or force is the newton.

1 kilogram is equal to 1000000000 ug.

Valid units must be of the **weight** type.

You can use this form to select from known units:

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The SI prefix "micro" represents a factor of
10^{-6}, or in exponential notation, 1E-6.

So 1 microgram = 10^{-6} grams-force.

ug to keg [nails]

ug to qintar [Arab]

ug to momme [Japan]

ug to mercantile pound

ug to pennyweight [troy]

ug to dan [China]

ug to dram [apothecaries]

ug to oncia [Italy]

ug to fother [lead]