How many pouce in 1 um? The answer is 3.9370078740157E-5. We assume you are converting between pouce and micrometre. You can view more details on each measurement unit: pouce or um The SI base unit for length is the metre. 1 metre is equal to 39.370078740157 pouce, or 1000000 um. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between pouces and micrometres. Type in your own numbers in the form to convert the units!
1 pouce to um = 25400 um
2 pouce to um = 50800 um
3 pouce to um = 76200 um
4 pouce to um = 101600 um
5 pouce to um = 127000 um
6 pouce to um = 152400 um
7 pouce to um = 177800 um
8 pouce to um = 203200 um
9 pouce to um = 228600 um
10 pouce to um = 254000 um
You can do the reverse unit conversion from um to pouce, or enter any two units below:
The pouce is a French "inch" unit. The modern definition from the international standard of units is that 1 inch = 2.54 cm or 1 pouce = 25.4 mm. The word pouce means "thumb" in French. In past history, it was equal to 1/12 pied. Based on the pied de roi, the historical pouce was equal to about 1.066 inches or 2.707 centimeters.
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 It is also commonly known as a micron, although that term is officially outdated.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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