Fillable Printable Magnetic Units Conversion Table
Fillable Printable Magnetic Units Conversion Table
Magnetic Units Conversion Table
UNITS
FOR
MAGNETIC
PROPERTIES
Quantity
Magneticfluxdensity,
magneticinduction
Magneticflux
Magneticpotentialdifference,
ma~netomotive
force
Magneticfieldstrength,
,magnetizingforce
(Volume)magnetization
g
(Volume)magnetization
Magneticpolarization,
intensity
of
magnetization
(Mass)magnetization
Magneticmoment
Magneticdipolemoment
(V
01
ume)susceptibility
Symbol
B
U,F
H
M
477M
1,1
(F,
M
m
j
Gaussian
&cgsemua
gauss
(0)
d
maxwell(Mx),G·cm
2
gilbert(Gb)
oersted
(Oe),e
Gb/cm
emu/cm
3
h
G
emu/cm
3
emu/g
emu,
erg/G
emu,
erg/G
dimensionless,
emu/cm
3
Conversion
factor,C
b
10-
4
10/477
477
X
10-
4
1
477
X
10-
7
10-
3
477
X
10-
10
SI&rationalizedmksC
tesla(T),
Wb/m
2
weber(Wb),voltsecond(V·s)
ampere
(A)
A/m!
A/m
A/m
T,
Wb/m
2i
A.m
2
/kg
Wb·m/kg
A.m
2
,
joulepertesla
(l/T)
Wb·m'
dimensionless
henrypermeter
(H/m),
Wb/(A.m)
(Mass)susceptibility
(Molar)susceptibility
Permeability
Relati vepermeability
j
(Volume)energydensity,
energyproductk
Demagnetizationfactor
cm
3
/g,
emu/g
477
X
10-
3
m
3
/kg
Xp,K
p
(477)2
X
10-
10
H.m
2
/kg
cm
3
/mol,emu/mol
477
X
10-
6
m
3
/mol
Xmo},
K
mo
]
(477)2
X
10-
l3
H·m
2
/mol
1J-
dimensionless
477
X
10-
7
H/m,
Wb/(A·m)
1J-r
notdefineddimensionless
W
erg/cm
3
10-
l
J/m
3
D,N
dimensionless
1/477
dimensionless
a.
Gaussianunitsandcgsemuarethesameformagneticproperties.
The
definingrelation
is
B
=H
+
477M.
b.
MultiplyanumberinGaussianunitsbyCtoconvertittoSI(e.g.,1GX
10-
4
T
/G
=
10-
4
T).
c.
SI(SystemeInternationald'Unites)hasbeenadoptedbytheNationalBureau
of
Standards.Where
two
conversionfactorsare
given,theupperone
is
recognizedunder,
or
consistentwith,SIand
is
basedonthedefinitionB=
1J-o(H
+M),where
1J-o
=
477
X
10-
7
H/m.
The
lowerone
is
notrecognizedunderSIand
is
basedonthedefinitionB
=1J-oll
+J,wherethesymbol
I
is
oftenused
in
place
of
J.
d.
1gauss=
10
5
gamma(1').
e.
Bothoerstedandgaussareexpressed
as
em
-1I2.
g
1l2.
S
-1
interms
of
baseunits.
/.
A/m
wasoftenexpressed
as
"ampere-turnpermeter"whenusedformagneticfieldstrength.
g.
Magneticmomentperunitvolume.
h.
The
designation"emu"
is
notaunit.
i.
RecognizedunderSI,eventhoughbasedonthedefinitionB=
1J-oll
+J.Seefootnotec.
j.
1J-r
=
1J-/1J-o
=1+
X,
allinSI.
1J-r
is
equaltoGaussian
1J-.
k.
B·H
and
1J-oM·H
haveSIunits
J/m
3
;
M·H
and
B·H
/477
haveGaussianunits
erg/cm
3
.
R.
B.
GoldfarbandF.R.Fickett,U.S.
De~artment
of
Commerce,NationalBureau
of
Standards,Boulder,Colorado80303,March
1985
NBSSpecialPublication696
For
salebytheSuperintendent
of
Documents,U.S.GovernmentPrintingOffice,Washington,
DC
20402
