This list presents most of the units that you will encounter in electrical engineering applications and literature.
If you know of others that should be added, please send me an
email.
Visit NIST for all constants, units,
and uncertainties. This is their Extensive
Listing of constants.
Here is a list of electrical constants.
Name (Symbol) 
Base Unit 
Unit Symbol 
Angular Frequency 
radians/second 
ω 
Admittance (Y) 
siemens 
S 
Capacitance (C) 
farad 
F 
Capacitive Reactance (X_{C}) 
ohm 
Ω 
Center Frequency (F_{c}) 
hertz 
Hz 
Charge 
coulomb 
C 
Conductance (G) [] 
siemen [mho] 
S ()
[1/Ω] 
Conductivity (σ) 
siemens/meter 
S/m 
Current (I) 
ampere 
A 
Dipole Moment 
coulomb·meter 
p 
Electric Charge 
coulomb 
Q 
Electric Flux 
coulomb 
Ψ 
Electric Flux Density 
coulomb/meter^{2} 
D 
Electric Susceptibility 
1 
χ_{e} 
Energy (E) 
joule 
J 
Frequency 
hertz 
Hz 
Impedance (Z) 
ohm 
Ω 
Inductance (L) 
henry 
H 
Inductive Reactance (X_{L}) 
ohm 
Ω 
Joule 
watt·second 
J 
Linear Current Density 
amperes/meter^{2} 
A 
Magnetic Field 
tesla 
T 
Magnetic Flux 
weber 
Φ 
Magnetic Flux Linkage 
weber 
Λ 
Magnetic Flux Density 
tesla 
B 
Magnetic Susceptibility 
1 
χ_{μ} 
Magnetic Vector Potential 
weber/meter 
A 
Magnetization 
ampere/meter 
M 
Magnetomotive Force 
weber 
Wb 
Mutual Inductance 
henry 
L_{i,j} M_{i,j} 
Permeability 
henrys/meter 
μ 
Permittivity 
farads/meter 
ε 
Phase Angle 
radian 
Φ 
Phase Coefficient 
radian 
β 
Potential (V) 
volt 
V 
Power (P) 
watt 
W 
Reluctance (R) 
1/henrys 
1/H 
Reluctivity 
meters/henry 
ν 
Resistance (R) 
ohm 
Ω 
Resistivity (ρ) 
ohm·meter 
Ω*m 
Resonant Frequency (F_{r}) 
hertz 
Hz 
Surface Density of Charge 
coulombs/meter^{2} 
σ 
Susceptance (B) 
siemen 
S 
Volume Density of Charge 
coulombs/meter^{3} 
ρ 
Volume Resistivity 
ohms/meter^{3} 
ρ 
Wavelength 
meter 
λ 
