Prefix
Symbol
Multiplier
Factor
yocto-
y
10-24
septillionth part
zepto-
z
10-21
sextillionth part
atto-
a
10-18
quintillionth part
femto-
f
10-15
quadrillionth part
pico-
p
10-12
trillionth part
nano-
n
10-9
billionth part
micro-
m
10-6
millionth part
milli-
m
10-3
thousandth part
centi-
c
10-2
hundredth part
deci-
d
10-1
tenth part
deka-
da
101
tenfold
hecto-
h
102
hundredfold
kilo-
k
103
thousandfold
mega-
M
106
millionfold
giga-
G
109
billionfold
tera-
T
1012
trillionfold
peta-
P
1015
quadrillionfold
exa-
E
1018
quintillionfold
zetta-
Z
1021
sextillionfold
yotta-
Y
1024
septillionfold

Base Unit Quantity Unit Symbol
Length metre m
Mass kilogram kg
Time second s
Electric Current ampere A
Thermodynamic kelvin K
Amount of Substance mole mol
Luminous Intensity candela cd

Supplementary Unit Quantity Unit Symbol
Plane angle radian rad
Solid angle Steradian sr


Last updated : 10th May 1999.
This page is Copyright Graham Kennedy 1998.

Star Trek et al is Copyright Paramount Pictures 1996/97.
No Copyright infringement is intended and this page is for personal use only.
All of the above classes of star ships and all of the
named ships are copyright Paramount 1996/97.