SI PREFIXES
FACTOR
...or in full ...
or in
words
SI
PREFIX
SI
SYMBOL
10E+24
10E+21
10E+18
10E+15
10E+12
10E+9
10E+6
10E+3
10E+2
10E+1
10E-1
10E-2
10E-3
10E-6
10E-9
10E-12
10E-15
10E-18
10E-21
10E-24 		1 000 000 000 000 000 000 000 000
1 000 000 000 000 000 000 000
1 000 000 000 000 000 000
1 000 000 000 000 000
1 000 000 000 000
1 000 000 000
1 000 000
1 000
100
10
0,1
0,01
0,001
0,000 001
0,000 000 001
0,000 000 000 001
0,000 000 000 000 001
0,000 000 000 000 000 001
0,000 000 000 000 000 000 001
0,000 000 000 000 000 000 000 001		 septillion
sextillion
quintillion
quadrillion
trillion
billion
million
thousand
hundred
ten
tenth
hundredth
thousandth
millionth
billionth
trillionth
quadrillionth
quintillionth
sextillionth
septillionth
yotta-
zettz-
exa-
peta-
tera-
giga-
mega-
kilo-
hecto-
deca-
deci-
centi-
milli-
micro-
nano-
pico-
femto-
atto-
zepto-
yocto-
Y
Z
E
P
T
G
M
k
h
da
d
c
m
µ
n
p
f
a
z
y
Note: The prefix hecto- to centi- are not 'preferred prefix' but referred to as 'other prefix' by SI, though centi- is in common use as in cubic centimetre or cc.
Le Système International d'Unités (SI) name the prefix giga and nano, milliard and milliardth respectivly. The wording shown here was approved by the General Conference on Weights and Measures and has been adopted in practice.
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