Depending on the mathematical definition, there are several types of magnetic permeability. They all quantify the same underlying magnetic property, but have different numerical values and/or units, because the calculation is defined under different exciting waveform, or other conditions.¹⁾

See also the main article: Magnetic permeability.

The following names can be encountered in the literature (this is a non-exhaustive list):

• absolute permeability
• AC inductance permeability
• AC permeability
• amplitude permeability
• anhysteretic permeability
• apparent permeability
• bulk permeability
• complex permeability
• DC permeability
• differential permeability
• dynamic permeability
• effective permeability
• equivalent permeability
• free space permeability
• ideal permeability
• imaginary permeability
• impedance permeability
• impulse permeability
• incremental permeability
• initial permeability
• intrinsic permeability
• linear permeability
• magnetic constant
• maximum permeability
• non-linear permeability
• peak permeability
• post-saturation permeability
• pulse permeability
• quasi-permeability
• quasi-static permeability
• real permeability
• recoil permeability
• relative permeability
• return permeability
• reversible permeability
• rotational permeability
• saturation permeability
• scalar permeability
• tensor permeability
• universal magnetic constant
• vacuum permeability
• vector permeability

• $μ$ - absolute magnetic permeability
• μ* - effective permeability
• $μ_0$ - permeability of vacuum
• $μ_{0.08}$ - (related to initial permeability)
• $μ_{0.4}$ - (related to initial permeability)
• $μ_4$ - (related to initial permeability)
• $μ_{4z}$ - (related to initial permeability)
• $μ_{5z}$ - (related to initial permeability)
• $μ_a$ - (related to initial permeability or apparent permeability)
• $μ_{air}$
• $μ_{core}$
• $μ_e$
• $μ_{eff}$
• $μ_{gap}$
• $μ_i$
• $μ_m$
• $μ_{max}$
• $μ_{max\;cc}$
• $μ_{max\;dc}$
• $μ_{p}$
• $μ_{p\;max}$
• $μ_r$
• $μ_{rev}$
• $μ_s$ ($μ_s'$ and $μ_s''$)
• $μ_{z8}$
• $\bar{μ}$ (μ complex)
• mu
• mu0
• mur

• Magnetic susceptibility