Mathematical Notation
Mathematical Power
Name
1018 or 1,000,000,000,000,000,000
one quintillion
1015 or 1,000,000,000,000,000
one quadrillion
1012 or 1,000,000,000,000
one trillion
109 or 1,000,000,000
one billion
106 or 1,000,000
one million
103 or 1,000
one thousand
102 100
one hundred
101 or 10
ten
100 or 1
one
10-1 or 0.1
one tenth
10-2 or 0.01
one hundredth
10-3 or 0.001
one thousandth
10-6 or 0.000 001
one millionth
10-9 or 0.000 000 001
one billionth
10-12 or 0.000 000 000 001
one trillionth
10-15 or 0.000 000 000 000 001
one quadrillionth
10-18 or 0.000 000 000 000 000 001
one quintillionth
Metric Interrelationships
Conversions from a multiple or submultiple to the basic units of meters, liters, or grams can be done using the table. For example, to convert from kilometers to meters, multiply by 1,000 (9.26 kilometers equals 9,260 meters) or to convert from meters to kilometers, multiply by 0.001 (9,260 meters equals 9.26 kilometers)
Prefix
Symbol
Length,
Area
Volume
exa
E
1018
1036
1054 peta
P
1015
1030
1045 tera
T
1012
1024
1036 giga
G
109
1018
1027 mega
M
106
1012
1018 hectokilo
hk
105
1010
1015 myria
ma
104
108
1012 kilo
k
103
106
109 hecto
h
102
104
106 deka
da
101
102
103 basic unit
—
1 meter,
1 meter2
1 meter3
1 gram,
1 liter
deci
d
10-1
10-2
10-3 centi
c
10-2
10-4
10-6 milli
m
10-3
10-6
10-9 decimilli
dm
10-4
10-8
10-12 centimilli
cm
10-5
10-10
10-15 micro
u
10-6
10-12
10-18 nano
n
10-9
10-18
10-27 pico
p
10-12
10-24
10-36 femto
f
10-15
10-30
10-45 atto
a
10-18
10-36
10-54
