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SI Prefixes

Published Online February 7, 2006

Last Edited January 20, 2014

SI Prefixes
Factor	Prefix	Symbol
10¹	deca	da
10²	hecto	h
10³	kilo	k
10⁶	mega	M
10⁹	giga	G
10¹²	tera	T
10¹⁵	peta	P
10¹⁸	exa	E
10^-1	deci	d
10^-2	centi	c
10^-3	milli	m
10^-6	micro	m
10^-9	nano	n
10^-12	pico	p
10^-15	femto	f
10^-18	atto	a

For more information see the article WEIGHTS & MEASURES.

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SI Prefixes

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