TBLEN10004: Metric prefixes / Prefixes or the SI-System (= Système international d’unités) / Präfixe für das Internationale Einheitensystem

The prefixes follow a decimal pattern.

SI prefixes
Prefix Symbol Value Extra
Quetta Q 1030 Quintillion
Ronna R 1027 Quadrillliarde
Yotta Y 1024 Quadrillion
Zetta Z 1021 Trilliarde
Exa E 1018 Trillion
Peta P 1015 Billiarde
Tera T 1012 Billion
Giga G 109 Milliarde
Mega M 106 Million
Kilo K or k 103 Tausend
Hekto h 102 Hundert
Deka da 101 Zehn
- - 1 Eins
Dezi d 10-1 Zehntel
Zenti c 10-2 Hunderstel
Milli m 10-3 Tausendstel
Mikro µ 10-6 Millionstel
Nano n 10-9 Milliardstel
Piko p 10-12 Billionstel
Femto f 10-15 Billiardstel
Atto a 10-18 Trillionstel
Zepto z 10-21 Trilliardstel
Yokto y 10-24 Quadrillionstel
Ronto r 10-27 Quadrilliardstel
Quekto q 10-30 Quintillionstel

Please notice the following inconsistencies:

Values smaller than 1 have a lowercase character and multiples have a highercase character. There are 3 exception here: Deka (da), Hekto (h) and Kilo (k). This is historical.

The high values end on "a" the low values end on "o".

Have fun.


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About the Author

Author: Wim Peeters - Keskon GmbH & Co. KG

Wim Peeters is electronics engineer with an additional master in IT and over 30 years of experience, including time spent in support, development, consulting, training and database administration. Wim has worked with SQL Server since version 6.5. He has developed in C/C++, Java and C# on Windows and Linux. He writes knowledge base articles to solve IT problems and publishes them on the Lubby Knowledge Platform.

Latest update: 09/01/2023 | Comment: