The International System of
Units (SI)
The International
System of Units (in French Le Systeme International d’Unites– abbreviated
as SI) was established by the 11th General Conference on Weights and
Measures (CGPM from ConferenceGenerale des Poids at Measures). The SI
system has seven base units
Prefixes in SI system
10-12
pico
p
10-9
nano
n
10-6 micro
µ
10-3
milli
m
10-2
centi
c
10-1
deci
d
10
deca
da
102hecto
h
103
kilo
k
106
mega
M
109
giga
G
1012
tera
T
