SI prefix

An SI prefix represents decimal multiples and sub-multiples of an .Bureau International des Poids et Mesures The International System of Units (SI) 9th edition. 2019. SI prefixes are determined by the . They are designed to be used with SI units, for example, kilometer, milligram and nanosecond. However, in practice, they can also be applied to non-SI units, such as megapixel and gigabyte. SI stands for "Système international", French for "international system".LNE, Introduction to the international system of units (SI)
On November 18, 2022, the prefixes of 1027 and 1030 were officially adopted as "ronna-", and "quetta-" respectively in a CGPM resolution.Resolution 3 of the 27th CGPM (2022) Retrieved 2023-06-11.
The SI prefixes are given below.Bureau International des Poids et Mesures The International System of Units (SI): Prefixes Retrieved 2023-10-24.
Name 	Value	Factor/Divider	Name 	Value
deca- 	10 	ten 	 	0.1
hecto- 	100 	hundred 	 	0.01
kilo- 	1000 	thousand 	 	0.001
mega- 	106 	million 	 	10-6
giga- 	109 	billion 	 	10-9
tera- 	1012 	trillion 	 	10-12
peta- 	1015 	quadrillion 	 	10-15
exa- 	1018 	quintillion 	 	10-18
zetta- 	1021 	sextillion 	 	10-21
yotta- 	1024 	septillion 	 	10-24
ronna- 	1027 	octillion 	 	10-27
quetta-	1030 	nonillion 	quecto-	10-30
For other prefixes, please see prefix.
== Sources ==
== See also ==
 
Category:Prefixes
ja:SI接頭辞の一覧
Category:Prefix systems