How many megameter in 1 um? The answer is 1.0E-12. We assume you are converting between megametre and micrometre. You can view more details on each measurement unit: megameter or um The SI base unit for length is the metre. 1 metre is equal to 1.0E-6 megameter, or 1000000 um. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between megameters and micrometres. Type in your own numbers in the form to convert the units!
1 megameter to um = 1000000000000 um
2 megameter to um = 2000000000000 um
3 megameter to um = 3000000000000 um
4 megameter to um = 4000000000000 um
5 megameter to um = 5000000000000 um
6 megameter to um = 6000000000000 um
7 megameter to um = 7000000000000 um
8 megameter to um = 8000000000000 um
9 megameter to um = 9000000000000 um
10 megameter to um = 10000000000000 um
You can do the reverse unit conversion from um to megameter, or enter any two units below:
A megametre (American spelling: megameter, symbol: Mm) is a unit of length equal to 10^6 metres (from the Greek words megas = big and metro = count/measure). Its customary equivalent is 621.37 miles.
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 It is also commonly known as a micron, although that term is officially outdated.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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