Deci - - wikipedia Deci - This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. ( September 2014 ) Look up deci - in Wiktionary, the free dictionary. Deci - ( symbol d ) is a decimal unit prefix in the metric system denoting a factor of one tenth. Proposed in 1793 and adopted in 1795, the prefix comes from the Latin decimus, meaning `` tenth ''. Since 1960, the prefix is part of the International System of Units ( SI ). Its most frequent use, however, is in a non-SI unit, the decibel, used to measure sound intensity ( relative to a reference ) and many other ratios. Example : A compact disc is about 12 centimeters or 1.2 decimeters. SI prefixes Prefix Base 1000 Base 10 Decimal English word Adoption Name Symbol Short scale Long scale yotta Y 1000 10 1000000000000000000000000 septillion quadrillion 1991 zetta Z 1000 10 1000000000000000000000 sextillion trilliard 1991 exa 1000 10 1000000000000000000 quintillion trillion peta 1000 10 1000000000000000 quadrillion billiard tera 1000 10 1000000000000 trillion billion 1960 giga 1000 10 1000000000 billion milliard 1960 mega 1000 10 1000000 million 1873 kilo k 1000 10 1000 thousand 1795 hecto h 1000 10 100 hundred 1795 deca da 1000 10 10 ten 1795 1000 10 one -- deci d 1000 10 0.1 tenth 1795 centi 1000 10 0.01 hundredth 1795 milli m 1000 10 0.001 thousandth 1795 micro μ 1000 10 0.000 001 millionth 1873 nano n 1000 10 0.000 000 001 billionth milliardth 1960 pico p 1000 10 0.000 000 000 001 trillionth billionth 1960 femto f 1000 10 0.000 000 000 000 001 quadrillionth billiardth 1964 atto 1000 10 0.000 000 000 000 000 001 quintillionth trillionth 1964 zepto z 1000 10 0.000 000 000 000 000 000 001 sextillionth trilliardth 1991 yocto y 1000 10 0.000 000 000 000 000 000 000 001 septillionth quadrillionth 1991 Jump up ^ Prefixes adopted before 1960 already existed before SI. 1873 was the introduction of the CGS system. References Jump up ^ Commission temporaire de Poids & Mesures rêpublicaines, En exécution des Décrets de la Convention Nationale ( 1793 ). Instruction abrégée sur les mesures déduites de la grandeur de la Terre ; uniformes pour toute la Rêpublique, et sur les Calculs relatifs à leur division décimale ( in French ) ( Edition originale ed. ). Paris, France : De l  ́ imprimerie nationale exécutive du Louvre. Retrieved 2015 - 10 - 09. Jump up ^ http://www.nikon.com/about/feelnikon/universcale/index_f.htm Retrieved from `` https://en.wikipedia.org/w/index.php?title=Deci-&oldid=775886804 '' Categories : SI prefixes Hidden categories : CS1 French - language sources ( fr ) Articles needing additional references from September 2014 All articles needing additional references Articles containing Latin - language text Talk About Wikipedia Български Brezhoneg Català Čeština Deutsch Español Esperanto Euskara فارسی Français Galego 한국어 Հայերեն हिन्दी Bahasa Indonesia Italiano ქართული Lietuvių മലയാളം Nederlands 日本 語 Norsk Norsk nynorsk ភាសា ខ្មែរ Plattdüütsch Polski Português Ripoarisch Русский Sicilianu Slovenščina کوردی Српски / srpski Suomi Svenska தமிழ் ไทย Українська Tiếng Việt 粵語 中文 Edit links This page was last edited on 17 April 2017, at 17 : 47. About Wikipedia

Question: what is the value of the prefix deci
Answer: one tenth