Specialized Administration > Tailoring Business Objects > Type and Attribute Management > Working with the Type and Attribute Management Utility > About Windchill Units > Exponential Units Prefixes
  
Exponential Units Prefixes
This topic provides symbols for use when specifying exponential notation in a supported unit string.
Rather than use exponential notation for unit values, use the following prefixes from the Symbol column in front of supported unit strings.
For example, for 23 microns, the system is designed to recognize "23 um", as well as 23e-6 m.
Unit Prefixes
Name
Symbol
Multiplier
yotta
Y
1.0e24
zetta
Z
1.0e21
exa
E
1.0e18
peta
P
1.0e15
tera
T
1.0e12
giga
G
1.0e9
mega
M
1.0e6
kilo
k or K
1.0e3
hecto
h or H
1.0e2
deka
D
1.0e1
deci
d
1.0e-1
centi
c
1.0e-2
milli
m
1.0e-3
micro
u or μ
1.0e-6
nano
n
1.0e-9
pico
p
1.0e-12
femto
f
1.0e-15
atto
a
1.0e-18
zepto
z
1.0e-21
yocto
y
1.0e-24