SI prefixes

high-resolution terminology - matching measurements at high-resolution

SI prefixes

Description

There are 20 SI prefixes defined to represent multiples and submiltiples of SI units.

Reference: BIPM SI prefixes

Factor	Name	Symbol	Multiplying factor
1024	yotta	Y	1 000 000 000 000 000 000 000 000
1021	zetta	Z	1 000 000 000 000 000 000 000
1018	exa	E	1 000 000 000 000 000 000
1015	peta	P	1 000 000 000 000 000
1012	tera	T	1 000 000 000 000
109	giga	G	1 000 000 000
106	mega	M	1 000 000
103	kilo	k	1 000
102	hecto	h	100
101	deca	da	10
10-1	deci	d	0.1
10-2	centi	c	0.01
10-3	milli	m	0.001
10-6	micro	µ	0.000 001
10-9	nano	n	0.000 000 001
10-12	pico	p	0.000 000 000 001
10-15	femto	f	0.000 000 000 000 001
10-18	atto	a	0.000 000 000 000 000 001
10-21	zepto	z	0.000 000 000 000 000 000 001
10-24	yocto	y	0.000 000 000 000 000 000 000 001

Bioblast links: SI base units - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>

Entity, count, and number, and SI base quantities / SI base units

Quantity name	Symbol	Unit name	Symbol	Comment
elementary	UX	elementary unit	[x]	UX, UB; [x] not in SI
count	NX	elementary unit	[x]	NX, NB; [x] not in SI
number	N	-	dimensionless	= NX·UX-1
amount of substance	nB	mole	[mol]	nX, nB
electric current	I	ampere	[A]	A = C·s-1
time	t	second	[s]
length	l	meter	[m]	SI: metre
mass	m	kilogram	[kg]
thermodynamic temperature	T	kelvin	[K]
luminous intensity	IV	candela	[cd]

Fundamental relationships

» Avogadro constant N_A

» Boltzmann constant k

» elementary charge e

» Faraday constant F

» gas constant R

» electrochemical constant f

SI and related concepts

» International System of Units

» elementary unit x

» SI prefixes

» International Union of Pure and Applied Chemistry, IUPAC

» entity

» quantity

» dimension

» format

» motive unit

» iconic symbols

MitoPedia concepts: Ergodynamics 

MitoPedia topics: BEC