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Quantity of magnetism Quantity symbolSI Conversion comparison CGS
Name Unit Name Unit
Magnetic flux φ Weber Wb 108 > < 10-8 Maxwell Mx
Magnetic flux density B Tesla T 104 > < 10-4 Gauss G
Strength of magnetic field H Ampere/m A/m 4π * 10-3 > < 103/4π Oersted Oe
Strength of magnetism M Ampere/m A/m 10-3 > < 103 Gauss G
Magnetic polarization J Tesla T 104/4π > < 4π * 10-4 Gauss G
Magnetomotive force Fm Ampere A 4π * 10-1 > < 10/4π Gilbert Gi
Magnetic attraction F Newton N 105 > < 10-5 Dyne dyn
Magnetic permeability μ Henry/m H/m 107/4π > < 4π * 10-7   Absolute number
Vaccuum permeability μ0 4π * 10-7 Henry/m H/m  1 Absolute number
Magnetic resistance Rm 1/Henry H-1 4π * 10-9 > < 109/4π Gilbert/Maxwell Gi/Mx
Permeance P Henry H 109/4π9 > < 4π * 10-9 Maxwell/Gilbert Mx/Gi
Maximum energy product BH Joule/m3 J/m3 4π * 10 > < 10-1/4π Gauss/Oersted G,Oe
BH Joule/m3 J/m3 10 > < 10-1 Erg/cm3 erg/cm3

How to convert

Multiplying the amount in SI units by the number on the left side of the arrow > will give the equivalent in CGS units and multiplying the amoung in CGS units by the number on the right side of the arrow < will give the equivalent in SI units.