TABLE II. Units for Magnetic Properties.

Symbol	Quantity	Conversion from Gaussian and CGS EMU to SIa
Φ	magnetic flux	1 Mx → 10−8 Wb = 10−8 V·s
B	magnetic flux density, magnetic induction	1 G → 10−4 T = 10−4 Wb/m2
H	magnetic field strength	1 Oe → 103/(4π) A/m
m	magnetic moment	1 erg/G = 1 emu → 10−3 A·m2 = 10−3 J/T
M	magnetization	1 erg/(G·cm3) = 1 emu/cm3 → 103 A/m
4πM	magnetization	1 G → 103/(4π) A/m
σ	specific magnetization	1 erg/(G·g) = 1 emu/g → 1 A·m2/kg
j	magnetic dipole moment	1 erg/G = 1 emu → 4π × 10−10 Wb·m
J	magnetic polarization	1 erg/(G·cm3) = 1 emu/cm3 → 4π × 10−4 T
χ, κ	susceptibility	1 → 4π
χρ	mass susceptibility	1 cm3/g → 4π × 10−3 m3/kg
μ	permeability	1 → 4π × 10−7 H/m = 4π × 10−7 Wb/(A·m)
μr	relative permeability	μ → μr
w, W	energy density	1 erg/cm3 → 10−1 J/m3
N, D	demagnetizing factor	1 → 1/(4π)

Vertical lines are optional in tables. Statements that serve as captions for the entire table do not need footnote letters.

^aGaussian units are the same as cg emu for magnetostatics; Mx = maxwell, G = gauss, Oe = oersted; Wb = weber, V = volt, s = second, T = tesla, m = meter, A = ampere, J = joule, kg = kilogram, H = henry.