Standard prefixes for the SI units of measure

Standard prefixes for the SI units of measure

Multiples Name
deca- hecto- kilo- mega- giga- tera- peta- exa- zetta- yotta-
Symbol
da h k M G T P E Z Y
Factor
100 101 102 103 106 109 1012 1015 1018 1021 1024

Subdivisions Name
deci- centi- milli- micro- nano- pico- femto- atto- zepto- yocto-
Symbol
d c m µ n p f a z y
Factor 100 10−1 10−2 10−3 10−6 10−9 10−12 10−15 10−18 10−21 10−24