How many millithou in 1 micrometre? The answer is 39.370078740157. We assume you are converting between millithou and micrometre. You can view more details on each measurement unit: millithou or micrometre The SI base unit for length is the metre. 1 metre is equal to 39370078.740157 millithou, or 1000000 micrometre. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between millithou and micrometres. Type in your own numbers in the form to convert the units!
1 millithou to micrometre = 0.0254 micrometre
10 millithou to micrometre = 0.254 micrometre
20 millithou to micrometre = 0.508 micrometre
30 millithou to micrometre = 0.762 micrometre
40 millithou to micrometre = 1.016 micrometre
50 millithou to micrometre = 1.27 micrometre
100 millithou to micrometre = 2.54 micrometre
200 millithou to micrometre = 5.08 micrometre
You can do the reverse unit conversion from micrometre to millithou, or enter any two units below:
The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.
So 1 millithou = 10-3 .
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 It is also commonly known as a micron, although that term is officially outdated.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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