## ››Convert span to micrometre

 span micrometer

 Did you mean to convert span to micrometre micron

How many span in 1 micrometer? The answer is 4.3744531933508E-6.
We assume you are converting between span and micrometre.
You can view more details on each measurement unit:
span or micrometer
The SI base unit for length is the metre.
1 metre is equal to 4.3744531933508 span, or 1000000 micrometer.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between span and micrometres.
Type in your own numbers in the form to convert the units!

## ››Quick conversion chart of span to micrometer

1 span to micrometer = 228600 micrometer

2 span to micrometer = 457200 micrometer

3 span to micrometer = 685800 micrometer

4 span to micrometer = 914400 micrometer

5 span to micrometer = 1143000 micrometer

6 span to micrometer = 1371600 micrometer

7 span to micrometer = 1600200 micrometer

8 span to micrometer = 1828800 micrometer

9 span to micrometer = 2057400 micrometer

10 span to micrometer = 2286000 micrometer

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## ››Definition: Micrometer

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 It is also commonly known as a micron, although that term is officially outdated.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.

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