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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 