SI Units

Unit	Symbol	Measure	Relationship
meter	m	length	fundamental
kilogram	kg	mass	fundamental
second	s	time	fundamental
ampere	A	electric current	fundamental
bequerel	Bq	radioactive decay	s^-1
candela	cd	luminous intensity	defined by a process
coulomb	C	electric charge	A·s
farad	F	capacitance	C/V
henry	H	inductance	V·s/A
hertz	Hz	frequency	s^-1
joule	J	energy	kg·m^2/s^2
kelvin	K	thermodynamic temperature	defined by a process
mole	mol	amount of a substance	6.022137 x 10^23 atoms or molecules
newton	N	force	kg·m/s^2
ohm	W	resistance, reactance, impedance	V/A
pascal	Pa	pressure, stress	N/m^2
radian	rad	plane angle	2π rad in a circle
steradian	sr	solid angle	4π sr in a sphere
tesla	T	magnetic induction	N·s/C·m = N/A·m
volt	V	electric potential	J/C
watt	W	power	J/s
weber	Wb	magnetic flux	T/m^2

Prefixes

Factor	Prefix	Symbol
10^12	tera	T
10^9	giga	G
10^6	mega	M
10^3	kilo	k
10^-1	deci	d
10^-2	centi	c
10^-3	milli	m
10^-6	micro	m
10^-9	nano	n
10^-12	pico	p
10^-15	femto	f