**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 microgram.

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

You can use this form to select from known units:

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

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

microgram to momme [Japan]

microgram to dram [apothecaries]

microgram to uncia [Rome]

microgram to firkin [butter, soap]

microgram to libra [Portugal, Spain]

microgram to maund [India]

microgram to keel [coal]

microgram to ton [short, US]

microgram to quartern-loaf