Các tiền tố thường sử dụng
|
Tiền tố
|
Kí hiệu
|
Hệ số
|
Lũy thừa
|
quetta
|
Q
|
1000000000000000000000000000000
|
1030
|
ronna
|
R
|
1000000000000000000000000000
|
1027
|
yotta
|
Y
|
1000000000000000000000000
|
1024
|
zetta
|
Z
|
1000000000000000000000
|
1021
|
exa
|
E
|
1000000000000000000
|
1018
|
peta
|
P
|
1000000000000000
|
1015
|
tera
|
T
|
1000000000000
|
1012
|
giga
|
G
|
1000000000
|
109
|
mega
|
M
|
1000000
|
106
|
kilo
|
k
|
1000
|
103
|
hecto
|
h
|
100
|
102
|
deca
|
da
|
10
|
101
|
(không có)
|
(không có)
|
1
|
100
|
deci
|
d
|
0.1
|
10−1
|
centi
|
c
|
0.01
|
10−2
|
milli
|
m
|
0.001
|
10−3
|
micro
|
μ
|
0000001
|
10−6
|
nano
|
n
|
0000000001
|
10−9
|
pico
|
p
|
0000000000001
|
10−12
|
femto
|
f
|
0000000000000001
|
10−15
|
atto
|
a
|
0000000000000000001
|
10−18
|
zepto
|
z
|
0000000000000000000001
|
10−21
|
yocto
|
y
|
0000000000000000000000001
|
10−24
|
ronto
|
r
|
0000000000000000000000000001
|
10−27
|
quecto
|
q
|
0000000000000000000000000000001
|
10−30
|
|