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SI Prefixes

Example: 1 TW=1000 GW (W=Watt)

Symbol Prefix Factor
T tera 1012
G giga 109
M Mega 106
k kilo 103
h hecto 102
da deca 101
d deci 10-1
c centi 10-2
m milli 10-3
µ micro 10-6
n nano 10-9
p pico 10-12
f femto 10-15
a atto 10-18
Note: In the computer world things are a bit different:
Symbol Prefix Factor Factor
T tera 240 1099511627776
G giga 230 1073741824
M Mega 220 1048576
k kilo 210 1024
Contributor: Joakim Ögren
Source: Farnell Components Catalogue
Please send any comments to Joakim Ögren.