Quantity |
Level
Cat. |
Use
Id. |
Name |
Convesion factors to SI units (1 unit equals)
|
Represen.
Symbol |
Cross
ref. |
|
| Electricity
and Magnetism
|
|
electric current
|
1
|
|
ampere
|
|
A
|
364
|
|
magnetic potential difference,
|
1S
|
|
kiloampere
|
|
kA
|
365
|
|
magnetomotive force
|
1S
|
|
milliampere
|
|
mA
|
366
|
|
current linkage
|
1S
|
|
microampere
|
|
µA
|
367
|
| |
1S
|
|
nanoampere
|
|
nA
|
368
|
| |
1S
|
|
picoampere
|
|
pA
|
369
|
|
electric charge, quantity of
|
1
|
|
coulomb
|
|
C
|
370
|
|
electricity
|
1
|
|
ampere second
|
1 C
|
A.s
|
371
|
|
electric flux
|
1M
|
|
ampere hour
|
3,6 kC (exactly)
|
A.h
|
372
|
|
(flux of displacement)
|
1M
|
|
kiloampere hour (thousand ampere
hour)
|
|
kA.h
|
373
|
| |
1S
|
|
megacoulomb
|
|
MC
|
374
|
| |
1S
|
|
millicoulomb
|
|
mC
|
375
|
| |
1S
|
|
kilocoulomb
|
|
kC
|
376
|
| |
1S
|
|
microcoulomb
|
|
µC
|
377
|
| |
1S
|
|
nanocoulomb
|
|
nC
|
378
|
| |
1S
|
|
picocoulomb
|
|
pC
|
379
|
|
volume density of charge,
|
1
|
|
coulomb per cubic metre
|
|
C/m³
|
380
|
|
charge density, volumic charge
|
1S
|
|
gigacoulomb per cubic metre
|
1 GC/m3
|
GC/m³
|
381
|
| |
1S
|
|
coulomb per cubic millimetre
|
1 GC/m3
|
C/mm³
|
382
|
| |
1S
|
|
megacoulomb per cubic metre
|
1 MC/m3
|
MC/m³
|
383
|
| |
1S
|
|
coulomb per cubic centimetre
|
1 MC/m3
|
C/cm³
|
384
|
|
volume density of charge,
|
1S
|
|
kilocoulomb per cubic metre
|
|
kC/m³
|
385
|
|
charge density, volumic charge
|
1S
|
|
millicoulomb per cubic metre
|
|
mC/m³
|
386
|
| |
1S
|
|
microcoulomb per cubic metre
|
|
µC/m³
|
387
|
|
surface density of charge,
|
1
|
|
coulomb per square metre
|
|
C/m²
|
388
|
|
electric flux density,
displacement
|
|
|
|
|
|
|
|
electric polarization
|
|
|
|
|
|
|
| |
1S
|
|
megacoulomb per square metre
|
1 MC/m2
|
MC/m²
|
390
|
| |
1S
|
|
coulomb per square millimetre
|
1 MC/m2
|
C/mm²
|
392
|
| |
1S
|
|
coulomb per square centimetre
|
|
C/cm²
|
393
|
| |
1S
|
|
kilocoulomb per square metre
|
|
kC/m²
|
394
|
| |
1S
|
|
millicoulomb per square metre
|
|
mC/m²
|
395
|
| |
1S
|
|
microcoulomb per square metre
|
|
µC/m²
|
396
|
|
electric field strength
|
1
|
|
volt per metre
|
|
V/m
|
397
|
| |
1S
|
|
megavolt per metre
|
|
MV/m
|
398
|
| |
1S
|
|
kilovolt per metre
|
1 kV/m
|
kV/m
|
399
|
| |
1S
|
|
volt per millimetre
|
1 kV/m
|
V/mm
|
400
|
| |
1S
|
|
volt per centimetre
|
|
V/cm
|
401
|
| |
1S
|
|
millivolt per metre
|
|
mv/m
|
402
|
| |
1S
|
|
microvolt per metre
|
|
µv/m
|
403
|
|
electric potential,
|
1
|
|
volt
|
|
V
|
404
|
|
potential difference,
|
1S
|
|
megavolt
|
|
MV
|
405
|
|
tension, voltage,
|
1S
|
|
kilovolt
|
|
kV
|
406
|
|
electromotive force
|
|
|
|
|
|
|
| |
1S
|
|
millivolt
|
|
mv
|
408
|
| |
1S
|
|
microvolt
|
|
µv
|
409
|
|
capacitance
|
1
|
|
farad
|
|
F
|
410
|
| |
1S
|
|
millifarad
|
|
mF
|
411
|
| |
1S
|
|
microfarad
|
|
µF
|
412
|
| |
1S
|
|
nanofarad
|
|
nF
|
413
|
| |
1S
|
|
picofarad
|
|
pF
|
414
|
|
frequency
rotational frequency
angular frequency
|
|
|
Note: see periodic and related phenomena
|
|
|
|
|
permittivity,
|
1
|
|
farad per metre
|
|
F/m
|
416
|
|
permittivity of vacuum,
|
1S
|
|
microfarad per metre
|
|
µF/m
|
417
|
|
(electric constant)
|
1S
|
|
nanofarad per metre
|
|
nF/m
|
418
|
| |
1S
|
|
picofarad per metre
|
|
pF/m
|
419
|
|
relative permittivity
|
1
|
|
one
|
|
1
|
420
|
|
electric susceptibility
|
1
|
|
one
|
|
1
|
421
|
|
electric dipole moment
|
1
|
|
coulomb metre
|
|
C.m
|
422
|
|
current density
|
1
|
|
ampere per square metre
|
|
A/m²
|
423
|
| |
1S
|
|
megaampere per square metre
|
|
MA/m²
|
424
|
| |
1S
|
|
ampere per square millimetre
|
|
A/mm²
|
425
|
| |
1S
|
|
ampere per square centimetre
|
|
A/cm²
|
426
|
| |
1S
|
|
kiloampere per square metre
|
|
kA/m²
|
427
|
|
linear electric current density,
|
1
|
|
ampere per metre
|
|
A/m
|
428
|
|
lineic electric current
|
1S
|
|
kiloampere per metre
|
1 kA/m
|
kA/m
|
429
|
| |
1S
|
|
ampere per millimetre
|
1 kA/m
|
A/mm
|
430
|
|
magnetic field strength
|
1S
|
|
ampere per centimetre
|
|
A/cm
|
431
|
|
magnetic flux density,
|
1
|
|
tesla
|
|
T
|
432
|
|
magnetic induction
|
1S
|
|
millitesla
|
|
mT
|
433
|
| |
1S
|
|
microtesla
|
|
µT
|
434
|
|
magnetic polarization
|
1S
|
|
nanotesla
|
|
nT
|
435
|
|
magnetic flux
|
1
|
|
weber
|
|
Wb
|
436
|
| |
1S
|
|
milliweber
|
|
mWb
|
437
|
|
magnetic vector potential
|
1
|
|
weber per metre
|
|
Wb/m
|
438
|
| |
1S
|
|
kiloweber per metre
|
|
kWb/m
|
439
|
| |
1S
|
|
weber per millimetre
|
|
Wb/mm
|
440
|
|
self inductance
|
1
|
|
henry
|
|
H
|
441
|
|
mutual inductance
|
1S
|
|
millihenry
|
|
mH
|
442
|
| |
1S
|
|
microhenry
|
|
µH
|
443
|
|
permeance
|
1S
|
|
nanohenry
|
|
nH
|
444
|
| |
1S
|
|
picohenry
|
|
pH
|
445
|
|
coupling coefficient
|
1
|
|
one
|
|
1
|
446
|
|
leakage coefficient
|
|
|
|
|
1
| |
|
number of turns in a winding
|
1
|
|
one
|
|
1
|
448
|
|
number of phases
|
|
|
|
|
1
| |
|
number of pairs of poles
|
|
|
|
|
1
| |
|
permeability
|
1
|
|
henry per metre
|
|
H/m
|
451
|
|
permeability of vacuum, magnetic
constant
|
1S
|
|
microhenry per metre
|
|
µH/m
|
452
|
| |
1S
|
|
nanohenry per metre
|
|
nH/m
|
453
|
|
relative permeability
|
1
|
|
one
|
|
1
|
454
|
|
magnetic susceptibility
|
1
|
|
one
|
|
1
|
455
|
|
electromagnetic moment, magnetic
moment, (magnetic area moment)
|
1
|
|
ampere square metre
|
|
A.m²
|
456
|
|
magnetization
|
1
|
|
ampere per metre
|
|
A/m
|
457
|
|
electromagnetic energy density,
|
1
|
|
joule per cubic metre
|
|
J/m³
|
458
|
|
volumic electromagnetic energy
|
|
|
|
|
|
|
|
Poynting vector
|
1
|
|
watt per square metre
|
|
W/m²
|
460
|
|
phase velocity of
electromagnetic waves, phase speed of electromagnetic waves
|
1
|
|
metre per second
|
|
m/s
|
461
|
|
velocity of electromagnetic
waves in vacuum, speed of electromagnetic waves in vacuum
|
|
|
(see velocity - space and time)
|
|
|
|
|
resistance (to direct current)
|
1
|
|
ohm
|
|
W
|
463
|
|
impedance, (complex impedances)
|
1S
|
|
gigaohm
|
|
GW
|
464
|
|
modulus of impedance
|
1S
|
|
megaohm
|
|
M
|
465
|
|
resistance (to alternating
current)
|
1S
|
|
kiloohm
|
|
k
|
466
|
|
reactance
|
1S
|
|
microohm
|
|
|
467
|
|
conductance (for direct current)
|
1
|
|
siemens
|
1 S
|
S
|
468
|
|
admittance, (complex admittance)
|
1S
|
|
kilosiemens
|
|
kS
|
469
|
|
modulus of admittance,
(admittance)
|
1S
|
|
millisiemens
|
|
mS
|
470
|
|
conductance (for alternating
current)
|
1S
|
|
microsiemens
|
|
S
|
471
|
|
susceptance
|
2
|
X
|
mho
|
1 S
|
|
472
|
| |
2
|
X
|
micromho
|
|
|
473
|
|
resistivity
|
1
|
|
ohm metre
|
|
W.m
|
474
|
| |
1S
|
|
gigaohm metre
|
|
GW.m
|
475
|
| |
1S
|
|
megaohm metre
|
|
MW.m
|
476
|
| |
1S
|
|
kiloohm metre
|
|
kW.m
|
477
|
| |
1S
|
|
ohm centimetre
|
|
W.cm
|
478
|
| |
1S
|
|
milliohm metre
|
|
mW.m
|
479
|
| |
1S
|
|
microohm metre
|
|
µW.m
|
480
|
| |
1S
|
|
nanoohm metre
|
|
nW.m
|
481
|
|
conductivity
|
1
|
|
siemens per metre
|
|
S/m
|
482
|
| |
1S
|
|
megasiemens per metre
|
|
MS/m
|
483
|
| |
1S
|
|
kilosiemens per metre
|
|
kS/m
|
484
|
|
reluctance
|
1
|
|
reciprocal henry
|
|
H-¹
|
486
|
|
phase difference
|
1
|
|
radian
|
|
rad
|
487
|
|
phase displacement
|
|
|
|
|
|
|
|
loss angle
|
|
|
|
|
|
|
|
power (for direct current)
|
1
|
|
watt
|
|
W
|
490
|
|
active power
|
1S
|
|
kilowatt
|
|
kW
|
491
|
| |
1S
|
|
megawatt
|
|
MW
|
492
|
| |
1S
|
|
gigawatt
|
|
GW
|
493
|
| |
1S
|
|
terawatt
|
|
TW
|
494
|
| |
1S
|
|
milliwatt
|
|
mW
|
495
|
| |
1S
|
|
microwatt
|
|
µW
|
496
|
| |
1S
|
|
nanowatt
|
|
nW
|
497
|
| |
1S
|
|
picowatt
|
|
pW
|
498
|
|
apparent power
|
1
|
|
volt - ampere
|
|
V.A
|
499
|
| |
1S
|
|
megavolt - ampere
|
|
MV.A
|
500
|
| |
1S
|
|
kilovolt - ampere
|
|
kV.A
|
501
|
| |
1S
|
|
kilovolt ampere (reactive)
|
|
|
502
|
|
reactive power
|
1
|
|
var
|
|
var
|
503
|
| |
1S
|
|
kilovar
|
|
kvar
|
504
|
|
active energy
|
1
|
|
joule
|
|
J
|
505
|
| |
1
|
|
watt hour
|
|
W.h
|
506
|