unit of measure
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international system of units

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fundamental physical constants

SI base and derived units

periodic table

fundamental physical constant

quantity	symbol	value	unit of measure
constant of gravitation	G	6.670*10^-11	newton*m²/kg²
Avogadro constant	N_A	6.02252*10²³	mol^-1
Faraday constant	F	9.6487*10⁴	coulomb/mole
Boltzmann constant	k	1.38054*10^-23	joule/K
molar gas constant	R	8.3143	joule/mole*K
speed of light in vacuum	c	2.9979246*10⁸	m/s
elementary charge	e	1.60219*10^-19	coulomb
permittivity of vacuum	e₀	8.8544*10^-12	coulomb²/N*m²
permeability of vacuum	µ₀	1.2566*10^-6	m*kg/coulomb²
electron mass	m_e	9.1091*10^-31	kg
proton mass	m_p	1.6725*10^-27	kg
neutron mass	m_n	1.6748*10^-27	kg
classical electron radius	r_e	2.81777*10^-15	m
Stefan-Boltzmann constant	s	5.6697*10^-8	joule/m²sK
Planck constant	h	6.62559*10^-34	joule*s
Rydberg constant	R_¥	1.09737*10⁷	m^-1
Bohr radius	a₀	0.529177*10^-10	m
fine structure constant	a	1/137.036	-

The fundamental constants represent the numerical constants established experimental, tied up to physical processes of varied nature. Has restrains that they preserve the same value in any place and moment, from which the name of universal and/or fundamental. The fundamental constants they besides are not definable for theoretical, but only street through experiments.

(ver. # 23.03.08 )

unit of measure conversions equivalences

fundamental physical constant

unit of measure
conversions equivalences