How many polegada in 1 um? The answer is 3.9370078740157E-5. We assume you are converting between polegada [Portuguese] and micrometre. You can view more details on each measurement unit: polegada or um The SI base unit for length is the metre. 1 metre is equal to 39.370078740157 polegada, or 1000000 um. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between polegadas and micrometres. Type in your own numbers in the form to convert the units!
1 polegada to um = 25400 um
2 polegada to um = 50800 um
3 polegada to um = 76200 um
4 polegada to um = 101600 um
5 polegada to um = 127000 um
6 polegada to um = 152400 um
7 polegada to um = 177800 um
8 polegada to um = 203200 um
9 polegada to um = 228600 um
10 polegada to um = 254000 um
You can do the reverse unit conversion from um to polegada, or enter any two units below:
A polegada é uma unidade de comprimento usada no sistema imperial de medidas britânico.
A polegada tem sua origem na medida realizada com o próprio polegar humano (não todo ele, mas a distância entre a dobra do polegar e a ponta). Uma medida rápida do polegar de um ser humano adulto fornece aproximadamente 2,5 cm de comprimento para esta distância.
Hoje em dia, ela é definida em função da Jarda. Esta por sua vez é definida em função do metro (unidade adotada na maioria dos países).
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 It is also commonly known as a micron, although that term is officially outdated.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.
ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 70 kg, 150 lbs, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!