Nanometre - Wikipedia Nanometre Nanometre Unit system metric Unit of length Symbol nm Unit conversions 1 nm in...... is equal to... SI units 6991100000000000000 ♠ 1 × 10 m Natural units 7025618770000000000 ♠ 6.1877 × 10 l 7001188970000000000 ♠ 18.897 a imperial / US units 3.2808 × 10 ft 3.9370 × 10 in The nanometre ( International spelling as used by the International Bureau of Weights and Measures ; SI symbol : nm ) or nanometer ( American spelling ) is a unit of length in the metric system, equal to one billionth ( short scale ) of a metre ( 6991100000000000000 ♠ 0.000 000 001 m ). The name combines the SI prefix nano - ( from the Ancient Greek νάνος, nanos, `` dwarf '' ) with the parent unit name metre ( from Greek μέτρον, metrοn, `` unit of measurement '' ). It can be written in scientific notation as 6991100000000000000 ♠ 1 × 10 m, in engineering notation as 1 E − 9 m, and is simply 1 / 7009100000000000000 ♠ 1000000000 metres. One nanometre equals ten ångströms. When used as a prefix for something other than a unit of measure ( as in `` nanoscience '' ), nano refers to nanotechnology, or phenomena typically occurring on a scale of nanometres ( see nanoscopic scale ). The nanometre is often used to express dimensions on an atomic scale : the diameter of a helium atom, for example, is about 0.1 nm, and that of a ribosome is about 20 nm. The nanometre is also commonly used to specify the wavelength of electromagnetic radiation near the visible part of the spectrum : visible light ranges from around 400 to 700 nm. The ångström, which is equal to 0.1 nm, was formerly used for these purposes, but is still used in other fields. Since the late 1980s, in usages such as 32 nm and 22 nm, it has also been used to describe typical feature sizes in successive generations of the ITRS Roadmap for miniaturization in the semiconductor industry. History The nanometre was formerly known as the millimicrometre -- or, more commonly, the millimicron for short -- since it is 1 / 1000 of a micron ( micrometre ), and was often denoted by the symbol mμ or ( more rarely and confusingly, since it logically should refer to a millionth of a micron ) as μμ. References ^ Jump up to : Svedberg, The ; Nichols, J. Burton ( 1923 ). `` Determination of the size and distribution of size of particle by centrifugal methods ''. Journal of the American Chemical Society. 45 ( 12 ) : 2910 -- 2917. doi : 10.1021 / ja01665a016. Jump up ^ Hewakuruppu, Y., et al., Plasmonic `` pump -- probe '' method to study semi-transparent nanofluids, Applied Optics, 52 ( 24 ) : 6041 - 6050 Jump up ^ Svedberg, The ; Rinde, Herman ( 1924 ). `` The ulta - centrifuge, a new instrument for the determination of size and distribution of size of particle in amicroscopic colloids ''. Journal of the American Chemical Society. 46 ( 12 ) : 2677 -- 2693. doi : 10.1021 / ja01677a011. Jump up ^ Terzaghi, Karl ( 1925 ). Erdbaumechanik auf bodenphysikalischer Grundlage. Vienna : Franz Deuticke. p. 32. External links Look up nanometre in Wiktionary, the free dictionary. Near - field Mie scattering in optical trap nanometry Nanoscale Informal Science Network SI units of length From smallest to largest ( left to right ). Commonly used units shown in bold italics. yoctometre ( 1 × 10 m ) zeptometre attometre femtometre picometre nanometre micrometre millimetre centimetre decimetre metre ( m ) decametre hectometre kilometre megametre gigametre terametre petametre exametre zettametre yottametre ( 1 × 10 m ) This standards - or measurement - related article is a stub. You can help Wikipedia by expanding it. Retrieved from `` https://en.wikipedia.org/w/index.php?title=Nanometre&oldid=838495386 '' Categories : Units of length Standards and measurement stubs Hidden categories : Articles containing Ancient Greek - language text All stub articles Talk About Wikipedia Afrikaans Aragonés Asturianu বাংলা Bân - lâm - gú Башҡортса Български Bosanski Català Чӑвашла Čeština Cymraeg Dansk Deutsch Eesti Ελληνικά Emiliàn e rumagnòl Español Esperanto Euskara فارسی Français Frysk Galego 客家 語 / Hak - kâ - ngî 한국어 Հայերեն Bahasa Indonesia Interlingua Íslenska Italiano עברית Қазақша Kiswahili ລາວ Latina Latviešu Македонски മലയാളം मराठी Bahasa Melayu Монгол Nederlands 日本 語 Norsk Norsk nynorsk پنجابی Polski Português Română Русский Саха тыла Scots Shqip Sicilianu Simple English Slovenčina Slovenščina Српски / srpski Srpskohrvatski / српскохрватски Svenska Tagalog தமிழ் Türkçe Українська اردو Vahcuengh Tiếng Việt Winaray 吴语 粵語 中文 64 more Edit links This page was last edited on 27 April 2018, at 11 : 40. Text is available under the Creative Commons Attribution - ShareAlike License ; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia ® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. About Wikipedia

Question: what is the relation between nanometer and meter
Answer: equal to one billionth (short scale) of a metre (6991100000000000000♠0.000000001 m)