:18 , 10<sup><small> 18</small></sup>  , 10^18 , exa , E
:15 , 10<sup><small> 15</small></sup>  , 10^15 , peta , P
:12 , 10<sup><small> 12</small></sup>  , 10^12 , tera , T
:9 , 10<sup><small> 9</small></sup>  , 10^9 , giga , G
:6 , 10<sup><small> 6</small></sup>  , 10^6 , mega , M
:3 , 10<sup><small> 3</small></sup>  , 10^3 , kilo , k
:2 , 10<sup><small> 2</small></sup>  , 10^2 , hecto , h
:1 , 10<sup><small> 1</small></sup>  , 10^1 , deca , da
:-1 , 10<sup><small> -1</small></sup>  , 10^-1 , deci , d
:-2 , 10<sup><small> -2</small></sup>  , 10^-2 , centi , c
:-3 , 10<sup><small> -3</small></sup>  , 10^-3 , milli , m
:-6 , 10<sup><small> -6</small></sup>  , 10^-6 , micro , &mu;
:-9 , 10<sup><small> -9</small></sup>  , 10^-9 , nano , n
:-12 , 10<sup><small> -12</small></sup>  , 10^-12 , pico , p
:-15 , 10<sup><small> -15</small></sup>  , 10^-15 , femto , f
:-18 , 10<sup><small> -18</small></sup>  , 10^-18 , atto , a   