The Most Important Magnetic Units

 

  SI units CGS units  
Magnetic induction
B = µH = µ0 µr H
A/m
(Ampere / Meter)
G
(Gauss)
1G = 10-8 Vs/cm²
1G = 10-4 T
1T= 10 kG
1T = 1 Vs m-2
Magnetic field strength
H
A/m
(Ampere / Meter)
Oe
(Oersted)
1Oe=1000 / 4 phi * A/m
1Oe = 79.58 * A/m
1A/m=4 phi / 1000 Oe
1A/m= 12.57 * 10-3 Oe
Magnetic field power density
B * H
J/m³
(Joule / m³)
G * Oe
(Gauss * Oersted)
1J/m³ = 125.7 * G Oe
1k G Oe = 7.958 J/m³
Magnetic flux
F
Wb
(Weber)
Vs
(Volt Seconds)
M
(Maxwell)
1 Wb = 1 Vs = 108 M
1 M = 10-8 Wb
Magnetic tension
Um
A
(Ampere)
Gb
(Gilbert)
1 Gb = 0.7958 A
1 A = 1.257 Gb
µ0 = 1.257 * 10-6 Vs / Am = 4 pi 10-7 Vs / Am = 1G / Oe