CGS and SI (MKS) unit systems

Table D.1: The centimetre-gram-seconds (CGS) and the metre-kilogram-seconds (SI) unit systems. To convert from one system to the other, cgs unit $\times$ factor $=$ mks unit. Data from Purcell (1985) and Jackson (1999)

description	cgs	unit	SI (mks)	unit	factor
acceleration	galileo	Gal	metre per second squared	m$\cdot$s$^{-2}$	0.01
dynamic viscosity	poise	P	pascal second	Pa$\cdot$s	0.1
electric charge	franklin	Fr	coulomb	C	3.34$\times$10$^{-10}$
electric current	biot	Bi	ampere	A	10
electric dipole moment	debye	D	coulomb metre	C$\cdot$m	3.34$\times$10$^{-30}$
energy (work)	erg		joule	J	10$^{-7}$
force	dyne	dyn	newton	N	10$^{-5}$
heat energy	calorie	cal	joule	J	4.187
heat transmission	langley		kilojoule per square metre	kJ$\cdot$m$^{-2}$	41.84
illumination	phot	ph	lux	lx	10$^4$
kinematic viscosity	stokes	St	square metres per second	m$^2\cdot$s$^{-1}$	10$^{-4}$
	lambert	Lb			3183.1
		stilb			sb
magnetic dipole moment	emu		ampere square metre	A$\cdot$m$^2$	10$^{-3}$
magnetic field strength	oersted	Oe	ampere per metre	A$\cdot$m$^{-1}$	79.577
	line	li			10$^{-8}$
		maxwell			Mx
		unit pole
magnetic flux density	gauss	G	tesla	T	10$^{-4}$
magnetomotive force	gilbert	Gi	ampere	A	0.796
permeability	darcy		square metre	m$^2$	0.987$\times$10$^{-12}$
pressure	barye	ba	pascal	Pa	0.1
wave number	kayser	K	per metre	m$^{-1}$	100