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to | micrometre micron |
How many millimil in 1 micrometer? The answer is 39.370078740157. We assume you are converting between millimil and micrometre. You can view more details on each measurement unit: millimil or micrometer The SI base unit for length is the metre. 1 metre is equal to 39370078.740157 millimil, or 1000000 micrometer. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between millimils and micrometres. Type in your own numbers in the form to convert the units!
1 millimil to micrometer = 0.0254 micrometer
10 millimil to micrometer = 0.254 micrometer
20 millimil to micrometer = 0.508 micrometer
30 millimil to micrometer = 0.762 micrometer
40 millimil to micrometer = 1.016 micrometer
50 millimil to micrometer = 1.27 micrometer
100 millimil to micrometer = 2.54 micrometer
200 millimil to micrometer = 5.08 micrometer
You can do the reverse unit conversion from micrometer to millimil, or enter any two units below:
The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.
So 1 millimil = 10-3 mils.
The definition of a mil is as follows:
A milliradian, often called a mil or mrad, is an SI derived unit for angular measurement which is defined as a thousandth of a radian (0.001 radian).
Compass use of mils typically rounds 6283 to 6400 for simplification, but here we use the official definition.
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 It is also commonly known as a micron, although that term is officially outdated.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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