Orders of magnitude (voltage)

To help compare different orders of magnitude, the following list describes various voltage levels.

SI prefix	Factor (volt)	Value	Item
Micro-	10−7	500 nV	Change in nerve cell potential caused by opening a single acetylcholine receptor channel[1]
	10−6	2 μV	Noise in an EEG taken at the scalp[2]
Milli-	10−5	10–100 μV	Peak-to-peak amplitude of an average EEG taken at the scalp[2][3]
		15 μV	Minimum terrestrial digital-TV RF antenna signal (−85 dBm over 75 Ω)[4][5]
		56 μV	Minimum terrestrial analog-TV RF antenna signal (35 dB[μV])[6][7][8]
	10−4	500–1000 μV	Miniature endplate potentials, spontaneous fluctuations in neuron potentials[1]
	10−3	1–2 mV	Potential created at ambient temperatures from K Type Thermocouple
Centi-	10−2	~10–50 mV	Ripple voltage in the output of a good DC power supply[9]
		75 mV	Nerve cell resting potential[10]
Deci-	10−1	320 mV	Typical voltage reference level in consumer audio electronics (0.316 V rms)[11]
		~500 mV	Typical MOSFET threshold voltage for modern processes[12]
		~700 mV	Forward voltage drop of normal silicon diodes[13]
		800–1000 mV	Typical positive supply voltage of a low voltage CMOS digital integrated circuit[14]
		900 mV	Lemon battery cell (made with copper and zinc electrodes)[15]
N/A	100	0-3 V	Magnitudes of standard reduction potentials in chemistry[16]
		1.5 V	Alkaline battery AAAA, AAA, AA, C or D battery[17]
		3.3 V	One of the most common low voltage CMOS digital circuit supply voltages.
		5 V	USB power, used for example to charge a cell phone or a digital camera.[18] Also one of the most common digital circuit supply voltages for both TTL and CMOS technologies.
		6 V	A common voltage for medium-size electric lanterns.[19] A voltage for older electric systems of automobiles.
Deca-	101	12 V	Typical car battery[20]
Hecto-	102	100–240 V	Domestic wall socket voltage[21]
		600 V	Electric eel sends this voltage in an average attack
		630 V	London Underground railway tracks
Kilo-	103	2450 V	Electric chair execution in Nebraska[22]
		3–10 kV	Electric fence[23]
		3 kV	Voltage required to generate every 1mm of electric arc
		3–35 kV	Accelerating voltage for a typical television cathode ray tube[24]
		4160-34,500 V	Typical voltages in North America for distribution of power from distribution substations to end users[25]
	104	15 kV	Train 15 kV AC railway electrification overhead lines, 16+2⁄3 Hz
		25 kV	European high-speed train overhead power lines[26]
		33 kV	Maximum voltage allowed in an electricity distribution grid after 1919 in the UK until 1926[27] (still used for heavy industry and factory overhead cable distribution systems)[28]
		69–230 kV	Range used in North American power high-voltage transmission substations[25]
	105	345–800 kV	Range used in EHV power transmission systems[29][30]
		800 kV	Lowest voltage used by ultra-high voltage (UHV) power transmission systems[31][30]
Mega-	106	3 MV	Used by the ultra-high voltage electron microscope at Osaka University[32]
	107	25.5 MV	The largest man-made DC voltage – produced in a Van de Graaff generator at Oak Ridge National Laboratory[33]
	108	100 MV	The potential difference between the ends of a typical lightning bolt[34]
Peta-	1015	7 PV	Voltage around a particular energetic highly magnetized rotating neutron star[35]
Ronna-	1027	1.04 RV	Planck voltage

SI multiple

SI multiples of volt (V)

Submultiples			Multiples
Value	SI symbol	Name	Value	SI symbol	Name
10−1 V	dV	decivolt	101 V	daV	decavolt
10−2 V	cV	centivolt	102 V	hV	hectovolt
10−3 V	mV	millivolt	103 V	kV	kilovolt
10−6 V	μV	microvolt	106 V	MV	megavolt
10−9 V	nV	nanovolt	109 V	GV	gigavolt
10−12 V	pV	picovolt	1012 V	TV	teravolt
10−15 V	fV	femtovolt	1015 V	PV	petavolt
10−18 V	aV	attovolt	1018 V	EV	exavolt
10−21 V	zV	zeptovolt	1021 V	ZV	zettavolt
10−24 V	yV	yoctovolt	1024 V	YV	yottavolt
10−27 V	rV	rontovolt	1027 V	RV	ronnavolt
10−30 V	qV	quectovolt	1030 V	QV	quettavolt