SI defines 20 prefixes used to form decimal multiples and sub-multiples of SI units. Table 1 shows the prefixed for positive exponents, table 2 the prefixes for negative exponents. These prefixes are used for units supported by the Application Server.
Factor |
Name |
Symbol |
1024 |
yotta |
Y |
1021 |
zetta |
Z |
1018 |
exa |
E |
1015 |
peta |
P |
1012 |
tera |
T |
109 |
giga |
G |
106 |
mega |
M |
103 |
kilo |
k |
102 |
hecto |
h |
101 |
deka |
da |
Table 1: Unit prefixes defined by the SI with positive exponents
Factor |
Name |
Symbol |
10-1 |
deci |
d |
10-2 |
centi |
c |
10-3 |
milli |
m |
10-6 |
micro |
ยต |
10-9 |
nano |
n |
10-12 |
pico |
p |
10-15 |
femto |
f |
10-18 |
atto |
a |
10-21 |
zepto |
z |
10-24 |
yocto |
y |
Table 2: Unit prefixes defined by the SI with negative exponents
