Metric System Unit Prefixes

For building circuits or other electronics, a system of prefixes is used to make managing and reading metric easier. Use this chart to learn the metric prefix, its symbol, and the decimal value.

Prefix	Symbol	Multiplication Factor
tera-	T	1012
giga-	G	109
mega-	M	106
kilo-	k	103
centi-	c	10–2
milli-	m	10–3
micro-	m	10–6
nano-	n	10–9
pico-	p	10–12

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Source:http://www.dummies.com/how-to/content/metric-system-unit-prefixes.html