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Prefixes for units of measure

Factor	Prefix	Symbol or abbreviation
10²⁴	yotta	Y
10²¹	zetta	Z
10¹⁸	exa	E
10¹⁵	peta	P
10¹²	tera	T
10⁹	giga	G
10⁶	mega	M
10³	kilo	k
10²	hecto	h
10¹	deka	da
10^–1	deci	d
10^–2	centi	c
10^–3	milli	m
10^–6	micro	µ
10^–9	nano	n
10^–12	pico	p
10^–15	femto	f
10^–18	atto	a
10^–21	zepto	z
10^–24	yocto	y

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