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SI Prefixes and Symbols Used to Denote Powers of 10


Prefix Multiple Symbol

yotta 1024 Y
zetta 1021 Z
exa 1018 E
peta 1015 P
tera 1012 T
giga 109 G
mega 106 M
kilo 103 k
hecto 102 h
deca 10 da
deci 10-1 d
centi 10-2 c
milli 10-3 m
micro 10-6 mu
nano 10-9 n
pico 10-12 p
femto 10-15 f
atto 10-18 a
zepto 10-21 Z
yotto 10-24 Y