Magnetic quantities are often converted into units

Name of magnetic quantity

symbol

CGS unit

SI unit

　　Conversion ratio

　　(multiply SI value by this number to get CGS value)

Pole strength

m

(Wb)

108/4π

Magnetic flux

φ

maxwell（Mx)

(Wb)

108

Magnetic moment

Mm

Magnetic moment

(A/m2)

103

B

（Gs）

(Wb/m2或T)

104

Magnetic field intensity

H

（Oe）

(A/m)

1/79.6

φm

Vm

(Oe·cm)

（A）

4π/10

magnetization

M

（Gs）

(A/m)

10-3

Relative susceptibility

χ

4π

Relative permeability

μ

1

Demagnetization factor

N(CGS) D(SI)

4π

Vacuum permeability

μ0

1

4π/107

107/4π

Magnetic resistance

Rm

(auburn cm)/ maxwell

（A/Wb）

4π·10-9

Magnetic crystal anisotropy constant

K1

erg/cm2

3(J/m3)

10

Magnetic energy product

(BH)m

High

3(J/m3)

109/ 7.96

Energy density of domain walls

γ

erg/cm2

2(J/m2)

103