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micrometre micron |

How many kilometer in 1 micrometer?
The answer is 1.0E-9.

We assume you are converting between **kilometre** and **micrometre**.

You can view more details on each measurement unit:

kilometer or
micrometer

The SI base unit for **length** is the metre.

1 metre is equal to 0.001 kilometer, or 1000000 micrometer.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between kilometres and micrometres.

Type in your own numbers in the form to convert the units!

1 kilometer to micrometer = 1000000000 micrometer

2 kilometer to micrometer = 2000000000 micrometer

3 kilometer to micrometer = 3000000000 micrometer

4 kilometer to micrometer = 4000000000 micrometer

5 kilometer to micrometer = 5000000000 micrometer

6 kilometer to micrometer = 6000000000 micrometer

7 kilometer to micrometer = 7000000000 micrometer

8 kilometer to micrometer = 8000000000 micrometer

9 kilometer to micrometer = 9000000000 micrometer

10 kilometer to micrometer = 10000000000 micrometer

You can do the reverse unit conversion from micrometer to kilometer, or enter any two units below:

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A kilometre (American spelling: kilometer, symbol: km) is a unit of length equal to 1000 metres (from the Greek words khilia = thousand and metro = count/measure). It is approximately equal to 0.621 miles, 1094 yards or 3281 feet.

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 It is also commonly known as a micron, although that term is officially outdated.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