Awalan Simbol Besaran
yocto- y 10-24
zepto- z 10-21
atto- a 10-18
femto- f 10-15
pico p 10-12
nano- n 10-9
micro- µ 10-6
mili- m 10-3
centi- c 10-2
deci- d 10-1
100
deka- D/da 101
hecto- h 102
kilo- k 103
mega- M 106
giga- G 109
tera- T 1012
peta- P 1015
exa- E 1018
zetta- Z 1021
yotta- Y 1024