Derived Units
Prefix, Multiples and Submultiples
Quantity
Special
name
Symbol
Other derived
units
Base units
Wavelength
-
k
-
Å
Frequency
hertz
Hz
-
s
À1
Force, weight
newton
N
-
kgms
À2
Stress, strength, Pressure
pascal
Pa
-
kgm
À1 s
À2
Energy, work, quantity of
heat
joule
J
Nm
kgm
2 s
À2
Power
watt
W
Js
À1
kgm
2 s
À3
Electric charge
coulomb
C
-
As
Electric potential
volt
V
WA
À1
kgm
2 s
À3 A
À2
Resistance
ohm
W*
VA
À1
kgm
2 s
À3 A
À2
Capacitance
farad
F
CV
À1
kg
À1 m
À2 s
4 A
2
Inductance
henry
H
WbA
À1
kgm
2 s
À2 A
À2
Factors by which the unit is multiplied
Name
Symbol
10
12
Tetra
T
10
9
Giga
G
10
6
Mega
M
10
3
Kilo
k
10
2
Hector
h
10
1
Deka
da
10
À1
Deci
d
10
À2
Centi
c
10
À3
Milli
m
10
À6
Micro
m*
10
À9
Nano
n
10
À12
Pico
p
10
À15
Femto
f
10
À18
Atto
a
x
Units of Measurements