Full name: micrometre
Plural form: micrometres
Alternate spelling: micrometers
Category type: length
Scale factor: 1.0E-6
The SI base unit for length is the metre.
1 metre is equal to 1000000 micrometre.
Valid units must be of the length type.
You can use this form to select from known units:
A micrometre (American spelling: micrometer, symbol µm) is an SI unit of length equal to one millionth of a metre, or about a tenth of the size of a droplet of mist or fog. It is also commonly known as a micron, although that term is officially outdated. It can be written in the expanded mathmatical notation (1×10-6 m)
The symbol µ is the "micro sign", which should look identical to the Greek letter mu (?) (the two may or may not look the same, depending on the font). The symbol "um" is sometimes used, when the µ and ? are not available, for example when using a typewriter.
The micrometre is a common unit of measurement for wavelengths of infrared radiation. Some people (especially in astronomy and the semiconductor business) use the old name micron and/or the solitary symbol µ (both of which were official between 1879 and 1967) to denote a micrometre. This practice persists in the face of official discouragement, perhaps to help disambiguate between the unit of measurement and the micrometer, a measuring device.
micrometre to military pace [double time]
micrometre to twip
micrometre to douzičme [watchmaking]
micrometre to furlong [international]
micrometre to polegada [Portuguese]
micrometre to kiloyard
micrometre to span
micrometre to gry
micrometre to nanon
micrometre to astronomical unit