Fundamental Physical Constants --- NIST, Complete Listing

8/2/2019 Fundamental Physical Constants --- NIST, Complete Listing

1/12

FundamentalPhysicalConstants---CompleteListing

From:http://physics.nist.gov/constants

QuantityValueUncertaintyUnit------------------------------------------------------------------------------------------------------------------------{220}latticespacingofsilicon192.0155762e-120.0000050e-12malphaparticle-electronmassratio7294.29953650.0000031alphaparticlemass6.64465620e-270.00000033e-27 galphaparticlemassenergyequivalent5.97191917e-100.00000030e-10JalphaparticlemassenergyequivalentinMeV3727.3791090.000093MeValphaparticlemassinu4.0015061791270.000000000062u

alphaparticlemolarmass4.001506179127e-30.000000000062e-3 gmol^-1alphaparticle-protonmassratio3.972599689510.00000000041Angstromstar1.00001498e-100.00000090e-10matomicmassconstant1.660538782e-270.000000083e-27 gatomicmassconstantenergyequivalent1.492417830e-100.000000074e-10JatomicmassconstantenergyequivalentinMeV931.4940280.000023MeVatomicmassunit-electronvoltrelationship931.494028e60.0

00023e6eVatomicmassunit-hartreerelationship3.4231777149e70.0000000049e7E_hatomicmassunit-hertzrelationship2.2523427369e230.0000000032e23Hzatomicmassunit-inversemeterrelationship7.513006671e140.000000011e14m^-1atomicmassunit-joulerelationship1.492417830e-100.000000074e-10Jatomicmassunit- elvinrelationship1.0809527e130.0000019e13Katomicmassunit-

ilogramrelationship1.660538782e-270.000000083e-27 g

atomicunitof1sthyperpolarizability3.206361533e-530.000000081e-53C^3m^3J^-2atomicunitof2ndhyperpolarizability6.23538095e-650.00000031e-65C^4m^4J^-3atomicunitofaction1.054571628e-340.000000053e-34Jsatomicunitofcharge1.602176487e-190.000000040e-19Catomicunitofchargedensity1.081202300e120.000000027e12Cm^-3


2/12

atomicunitofcurrent6.62361763e-30.00000017e-3Aatomicunitofelectricdipolemom.8.47835281e-300.00000021e-30Cmatomicunitofelectricfield5.14220632e110.00000013e11Vm^-1atomicunitofelectricfieldgradient9.71736166e210.00000024e21Vm^-2atomicunitofelectricpolarizability1.6487772536e-410.0000000034e-41C^2m^2J^-1atomicunitofelectricpotential27.211383860.00000068Vatomicunitofelectricquadrupolemom.4.48655107e-400.00000011e-40Cm^2atomicunitofenergy4.35974394e-180.00000022e-18Jatomicunitofforce8.23872206e-80.00000041e-8Natomicunitoflength0.52917720859e-100.00000000036e-10matomicunitofmag.dipolemom.1.854801830e-230.000000046e-23JT^-1atomicunitofmag.fluxdensity2.350517382e50.000000059e5T

atomicunitofmagnetizability7.891036433e-290.000000027e-29JT^-2atomicunitofmass9.10938215e-310.00000045e-31 gatomicunitofmomentum1.992851565e-240.000000099e-24 gms^-1atomicunitofpermittivity1.112650056...e-10(exact)Fm^-1atomicunitoftime2.418884326505e-170.000000000016e-17satomicunitofvelocity2.1876912541e60.0000000015e6ms^-1Avogadroconstant6.02214179e230.0

0000030e23mol^-1Bohrmagneton927.400915e-260.000023e-26JT^-1BohrmagnetonineV/T5.7883817555e-50.0000000079e-5eVT^-1BohrmagnetoninHz/T13.99624604e90.00000035e9HzT^-1Bohrmagnetonininversemeterspertesla46.68645150.0000012m^-1T^-1BohrmagnetoninK/T0.67171310.0000012KT^-1Bohrradius0.52917720859e-100.00000000036e-10m

Boltzmannconstant1.3806504e-230.0000024e-23JK^-1BoltzmannconstantineV/K8.617343e-50.000015e-5eVK^-1BoltzmannconstantinHz/K2.0836644e100.0000036e10HzK^-1Boltzmannconstantininversemetersper

elvin69.503560.00012m^-1K^-1characteristicimpedanceofvacuum376.730313461...(exact)ohm


3/12

classicalelectronradius2.8179402894e-150.0000000058e-15mComptonwavelength2.4263102175e-120.0000000033e-12mComptonwavelengthover2pi386.15926459e-150.00000053e-15mconductancequantum7.7480917004e-50.0000000053e-5SconventionalvalueofJosephsonconstant483597.9e9(exact)HzV^-1conventionalvalueofvonKlitzingconstant25812.807(exact)ohmCuxunit1.00207699e-130.00000028e-13mdeuteron-electronmag.mom.ratio-4.664345537e-40.000000039e-4deuteron-electronmassratio3670.48296540.0000016deuterongfactor0.85743823080.0000000072deuteronmag.mom.0.433073465e-260.000000011e-26JT^-1deuteronmag.mom.toBohrmagnetonratio0.4669754556e-30.0000000039e-3

deuteronmag.mom.tonuclearmagnetonratio0.85743823080.0000000072deuteronmass3.34358320e-270.00000017e-27 gdeuteronmassenergyequivalent3.00506272e-100.00000015e-10JdeuteronmassenergyequivalentinMeV1875.6127930.000047MeVdeuteronmassinu2.0135532127240.000000000078udeuteronmolarmass2.013553212724e-30.000000000078e-3 gmol^-1deuteron-neutronmag.mom.ratio-0.448206520.0

0000011deuteron-protonmag.mom.ratio0.30701220700.0000000024deuteron-protonmassratio1.999007501080.00000000022deuteronrmschargeradius2.1402e-150.0028e-15melectricconstant8.854187817...e-12(exact)Fm^-1electronchargetomassquotient-1.758820150e110.000000044e11C g^-1electron-deuteronmag.mom.ratio-2143.9234980.000018

electron-deuteronmassratio2.7244371093e-40.0000000012e-4electrongfactor-2.00231930436220.0000000000015electrongyromag.ratio1.760859770e110.000000044e11s^-1T^-1electrongyromag.ratioover2pi28024.953640.00070MHzT^-1electronmag.mom.-928.476377e-260.000023e-26JT^-1


4/12

electronmag.mom.anomaly1.15965218111e-30.00000000074e-3electronmag.mom.toBohrmagnetonratio-1.001159652181110.00000000000074electronmag.mom.tonuclearmagnetonratio-1838.281970920.00000080electronmass9.10938215e-310.00000045e-31

gelectronmassenergyequivalent8.18710438e-140.00000041e-14JelectronmassenergyequivalentinMeV0.5109989100.000000013MeVelectronmassinu5.4857990943e-40.0000000023e-4uelectronmolarmass5.4857990943e-70.0000000023e-7

gmol^-1electron-muonmag.mom.ratio206.76698770.0000052electron-muonmassratio4.83633171e-30.00000012e-3electron-neutronmag.mom.ratio960.920500.00023electron-neutronmassratio5.4386734459e-40.0000000033e-4

electron-protonmag.mom.ratio-658.21068480.0000054electron-protonmassratio5.4461702177e-40.0000000024e-4electron-taumassratio2.87564e-40.00047e-4electrontoalphaparticlemassratio1.37093355570e-40.00000000058e-4electrontoshieldedhelionmag.mom.ratio864.0582570.000010electrontoshieldedprotonmag.mom.ratio-658.22759710.0000072electronvolt1.602176487e-190.0

00000040e-19Jelectronvolt-atomicmassunitrelationship1.073544188e-90.000000027e-9uelectronvolt-hartreerelationship3.674932540e-20.000000092e-2E_helectronvolt-hertzrelationship2.417989454e140.000000060e14Hzelectronvolt-inversemeterrelationship8.06554465e50.00000020e5m^-1electronvolt-joulerelationship1.602176487e-190.000000040e-19Jelectronvolt-

elvinrelationship1.1604505e40.0000020e4K

electronvolt-

ilogramrelationship1.782661758e-360.000000044e-36 gelementarycharge1.602176487e-190.000000040e-19Celementarychargeoverh2.417989454e140.000000060e14AJ^-1Faradayconstant96485.33990.0024Cmol^-1Faradayconstantforconventionalelectriccurrent96485.34010.0048C_90mol^-1


5/12

Fermicouplingconstant1.16637e-50.00001e-5GeV^-2fine-structureconstant7.2973525376e-30.0000000050e-3firstradiationconstant3.74177118e-160.00000019e-16Wm^2firstradiationconstantforspectralradiance1.191042759e-160.000000059e-16Wm^2sr^-1hartree-atomicmassunitrelationship2.9212622986e-80.0000000042e-8uhartree-electronvoltrelationship27.211383860.00000068eVHartreeenergy4.35974394e-180.00000022e-18JHartreeenergyineV27.211383860.00000068eVhartree-hertzrelationship6.579683920722e150.000000000044e15Hzhartree-inversemeterrelationship2.194746313705e70.000000000015e7m^-1hartree-joulerelationship4.35974394e-180.00000022e-18Jhartree- elvinrelationship3.1577465e50.0000055e5K

hartree-

ilogramrelationship4.85086934e-350.00000024e-35 ghelion-electronmassratio5495.88527650.0000052helionmass5.00641192e-270.00000025e-27 ghelionmassenergyequivalent4.49953864e-100.00000022e-10JhelionmassenergyequivalentinMeV2808.3913830.000070MeVhelionmassinu3.01493224730.0000000026uhelionmolarmass3.0149322473e-30.0

000000026e-3

gmol^-1helion-protonmassratio2.99315267130.0000000026hertz-atomicmassunitrelationship4.4398216294e-240.0000000064e-24uhertz-electronvoltrelationship4.13566733e-150.00000010e-15eVhertz-hartreerelationship1.519829846006e-160.000000000010e-16E_hhertz-inversemeterrelationship3.335640951...e-9(exact)m^-1hertz-joulerelationship6.62606896e-340.00000033e-34J

hertz-

elvinrelationship4.7992374e-110.0000084e-11Khertz-

ilogramrelationship7.37249600e-510.00000037e-51 ginversefine-structureconstant137.0359996790.000000094inversemeter-atomicmassunitrelationship1.3310250394e-150.0000000019e-15uinversemeter-electronvoltrelationship1.239841875e-60.000000031e-6eV


6/12

inversemeter-hartreerelationship4.556335252760e-80.000000000030e-8E_hinversemeter-hertzrelationship299792458(exact)Hzinversemeter-joulerelationship1.986445501e-250.000000099e-25Jinversemeter- elvinrelationship1.4387752e-20.0000025e-2Kinversemeter- ilogramrelationship2.21021870e-420.00000011e-42

ginverseofconductancequantum12906.40377870.0000088ohmJosephsonconstant483597.891e90.012e9HzV^-1joule-atomicmassunitrelationship6.70053641e90.00000033e9ujoule-electronvoltrelationship6.24150965e180.00000016e18eVjoule-hartreerelationship2.29371269e170.00000011e17E_hjoule-hertzrelationship1.509190450e330.000000075e33Hzjoule-inversemeterrelationship5.03411747e240.00000025e24m^-1

joule-

elvinrelationship7.242963e220.000013e22Kjoule- ilogramrelationship1.112650056...e-17(exact) g elvin-atomicmassunitrelationship9.251098e-140.000016e-14u elvin-electronvoltrelationship8.617343e-50.000015e-5eV elvin-hartreerelationship3.1668153e-60.0000055e-6E_h elvin-hertzrelationship2.0836644e100.0000036e10Hz elvin-inversemeterrelationship69.503560.0

0012m^-1 elvin-joulerelationship1.3806504e-230.0000024e-23J

elvin-

ilogramrelationship1.5361807e-400.0000027e-40 g ilogram-atomicmassunitrelationship6.02214179e260.00000030e26u

ilogram-electronvoltrelationship5.60958912e350.00000014e35eV ilogram-hartreerelationship2.06148616e340.00000010e34E_h

ilogram-hertzrelationship1.356392733e500.000000068e50Hz

ilogram-inversemeterrelationship4.52443915e410.00000023e41m^-1

ilogram-joulerelationship8.987551787...e16(exact)J ilogram- elvinrelationship6.509651e390.000011e39Klatticeparameterofsilicon543.102064e-120.000014e-12mLoschmidtconstant(273.15K,101.325 Pa)2.6867774e250.0000047e25m^-3


7/12

mag.constant12.566370614...e-7(exact)NA^-2mag.fluxquantum2.067833667e-150.000000052e-15Wbmolargasconstant8.3144720.000015Jmol^-1K^-1molarmassconstant1e-3(exact)

gmol^-1molarmassofcarbon-1212e-3(exact)

gmol^-1molarPlanc constant3.9903126821e-100.0000000057e-10Jsmol^-1molarPlanc constanttimesc0.119626564720.00000000017Jmmol^-1molarvolumeofidealgas(273.15K,100 Pa)22.710981e-30.000040e-3m^3mol^-1molarvolumeofidealgas(273.15K,101.325 Pa)22.413996e-30.000039e-3m^3mol^-1molarvolumeofsilicon12.0588349e-60.0000011e-6m^3mol^-1Moxunit1.00209955e-130.00000053e-13mmuonComptonwavelength11.73444104e-150.00000030e-15m

muonComptonwavelengthover2pi1.867594295e-150.000000047e-15mmuon-electronmassratio206.76828230.0000052muongfactor-2.00233184140.0000000012muonmag.mom.-4.49044786e-260.00000016e-26JT^-1muonmag.mom.anomaly1.16592069e-30.00000060e-3muonmag.mom.toBohrmagnetonratio-4.84197049e-30.00000012e-3muonmag.mom.tonuclearmagnetonratio-8.890597050.0

0000023muonmass1.88353130e-280.00000011e-28 gmuonmassenergyequivalent1.692833510e-110.000000095e-11JmuonmassenergyequivalentinMeV105.65836680.0000038MeVmuonmassinu0.11342892560.0000000029umuonmolarmass0.1134289256e-30.0000000029e-3 gmol^-1muon-neutronmassratio0.11245451670.0000000029

muon-protonmag.mom.ratio-3.1833451370.000000085muon-protonmassratio0.11260952610.0000000029muon-taumassratio5.94592e-20.00097e-2naturalunitofaction1.054571628e-340.000000053e-34JsnaturalunitofactionineVs6.58211899e-160.00000016e-16eVs


8/12

naturalunitofenergy8.18710438e-140.00000041e-14JnaturalunitofenergyinMeV0.5109989100.000000013MeVnaturalunitoflength386.15926459e-150.00000053e-15mnaturalunitofmass9.10938215e-310.00000045e-31

gnaturalunitofmomentum2.73092406e-220.00000014e-22

gms^-1naturalunitofmomentuminMeV/c0.5109989100.000000013MeV/cnaturalunitoftime1.2880886570e-210.0000000018e-21snaturalunitofvelocity299792458(exact)ms^-1neutronComptonwavelength1.3195908951e-150.0000000020e-15mneutronComptonwavelengthover2pi0.21001941382e-150.00000000031e-15mneutron-electronmag.mom.ratio1.04066882e-30.00000025e-3neutron-electronmassratio1838.68366050.0000011

neutrongfactor-3.826085450.00000090neutrongyromag.ratio1.83247185e80.00000043e8s^-1T^-1neutrongyromag.ratioover2pi29.16469540.0000069MHzT^-1neutronmag.mom.-0.96623641e-260.00000023e-26JT^-1neutronmag.mom.toBohrmagnetonratio-1.04187563e-30.00000025e-3neutronmag.mom.tonuclearmagnetonratio-1.913042730.00000045neutronmass1.674927211e-270.0

00000084e-27

gneutronmassenergyequivalent1.505349505e-100.000000075e-10JneutronmassenergyequivalentinMeV939.5653460.000023MeVneutronmassinu1.008664915970.00000000043uneutronmolarmass1.00866491597e-30.00000000043e-3 gmol^-1neutron-muonmassratio8.892484090.00000023neutron-protonmag.mom.ratio-0.684979340.00000016

neutron-protonmassratio1.001378419180.00000000046neutron-taumassratio0.5287400.000086neutrontoshieldedprotonmag.mom.ratio-0.684996940.00000016Newtonianconstantofgravitation6.67428e-110.00067e-11m^3 g^-1s^-2Newtonianconstantofgravitationoverh-barc6.70881e-390.00067e-39(GeV/c^2)^-2


9/12

nuclearmagneton5.05078324e-270.00000013e-27JT^-1nuclearmagnetonineV/T3.1524512326e-80.0000000045e-8eVT^-1nuclearmagnetonininversemeterspertesla2.542623616e-20.000000064e-2m^-1T^-1nuclearmagnetoninK/T3.6582637e-40.0000064e-4KT^-1nuclearmagnetoninMHz/T7.622593840.00000019MHzT^-1Planc constant6.62606896e-340.00000033e-34JsPlanc constantineVs4.13566733e-150.00000010e-15eVsPlanc constantover2pi1.054571628e-340.000000053e-34JsPlanc constantover2piineVs6.58211899e-160.00000016e-16eVsPlanc constantover2pitimescinMeVfm197.32696310.0000049MeVfmPlanc length1.616252e-350.000081e-35mPlanc mass2.17644e-80.00011e-8 g

Planc

massenergyequivalentinGeV1.220892e190.000061e19GeVPlanc temperature1.416785e320.000071e32KPlanc time5.39124e-440.00027e-44sprotonchargetomassquotient9.57883392e70.00000024e7C g^-1protonComptonwavelength1.3214098446e-150.0000000019e-15mprotonComptonwavelengthover2pi0.21030890861e-150.00000000030e-15mproton-electronmassratio1836.152672470.0

0000080protongfactor5.5856947130.000000046protongyromag.ratio2.675222099e80.000000070e8s^-1T^-1protongyromag.ratioover2pi42.57748210.0000011MHzT^-1protonmag.mom.1.410606662e-260.000000037e-26JT^-1protonmag.mom.toBohrmagnetonratio1.521032209e-30.000000012e-3protonmag.mom.tonuclearmagnetonratio2.7928473560.000000023

protonmag.shieldingcorrection25.694e-60.014e-6protonmass1.672621637e-270.000000083e-27 gprotonmassenergyequivalent1.503277359e-100.000000075e-10JprotonmassenergyequivalentinMeV938.2720130.000023MeVprotonmassinu1.007276466770.00000000010u


10/12

protonmolarmass1.00727646677e-30.00000000010e-3

gmol^-1proton-muonmassratio8.880243390.00000023proton-neutronmag.mom.ratio-1.459898060.00000034proton-neutronmassratio0.998623478240.00000000046protonrmschargeradius0.8768e-150.0069e-15mproton-taumassratio0.5280120.000086quantumofcirculation3.6369475199e-40.0000000050e-4m^2s^-1quantumofcirculationtimes27.273895040e-40.000000010e-4m^2s^-1Rydbergconstant10973731.5685270.000073m^-1RydbergconstanttimescinHz3.289841960361e150.000000000022e15HzRydbergconstanttimeshcineV13.605691930.00000034eVRydbergconstanttimeshcinJ2.17987197e-180.00000011e-18J

Sac

ur-Tetrodeconstant(1K,100

Pa)-1.15170470.0000044Sac ur-Tetrodeconstant(1K,101.325 Pa)-1.16486770.0000044secondradiationconstant1.4387752e-20.0000025e-2mKshieldedheliongyromag.ratio2.037894730e80.000000056e8s^-1T^-1shieldedheliongyromag.ratioover2pi32.434101980.00000090MHzT^-1shieldedhelionmag.mom.-1.074552982e-260.000000030e-26JT^-1shieldedhelionmag.mom.toBohrmagnetonratio-1.158671471e-30.0

00000014e-3shieldedhelionmag.mom.tonuclearmagnetonratio-2.1274977180.000000025shieldedheliontoprotonmag.mom.ratio-0.7617665580.000000011shieldedheliontoshieldedprotonmag.mom.ratio-0.76178613130.0000000033shieldedprotongyromag.ratio2.675153362e80.000000073e8s^-1T^-1shieldedprotongyromag.ratioover2pi42.57638810.0000012MHzT^-1shieldedprotonmag.mom.1.410570419e-260.000000038e-26JT^-1

shieldedprotonmag.mom.toBohrmagnetonratio1.520993128e-30.000000017e-3shieldedprotonmag.mom.tonuclearmagnetonratio2.7927755980.000000030speedoflightinvacuum299792458(exact)ms^-1standardaccelerationofgravity9.80665(exact)ms^-2standardatmosphere101325(exact)Pa


11/12

Stefan-Boltzmannconstant5.670400e-80.000040e-8Wm^-2K^-4tauComptonwavelength0.69772e-150.00011e-15mtauComptonwavelengthover2pi0.111046e-150.000018e-15mtau-electronmassratio3477.480.57taumass3.16777e-270.00052e-27

gtaumassenergyequivalent2.84705e-100.00046e-10JtaumassenergyequivalentinMeV1776.990.29MeVtaumassinu1.907680.00031utaumolarmass1.90768e-30.00031e-3 gmol^-1tau-muonmassratio16.81830.0027tau-neutronmassratio1.891290.00031tau-protonmassratio1.893900.00031

Thomsoncrosssection0.6652458558e-280.0000000027e-28m^2triton-electronmag.mom.ratio-1.620514423e-30.000000021e-3triton-electronmassratio5496.92152690.0000051tritongfactor5.9579248960.000000076tritonmag.mom.1.504609361e-260.000000042e-26JT^-1tritonmag.mom.toBohrmagnetonratio1.622393657e-30.000000021e-3tritonmag.mom.tonuclearmagnetonratio2.9789624480.0

00000038tritonmass5.00735588e-270.00000025e-27 gtritonmassenergyequivalent4.50038703e-100.00000022e-10JtritonmassenergyequivalentinMeV2808.9209060.000070MeVtritonmassinu3.01550071340.0000000025utritonmolarmass3.0155007134e-30.0000000025e-3 gmol^-1triton-neutronmag.mom.ratio-1.557185530.00000037

triton-protonmag.mom.ratio1.0666399080.000000010triton-protonmassratio2.99371703090.0000000025unifiedatomicmassunit1.660538782e-270.000000083e-27 gvonKlitzingconstant25812.8075570.000018ohmwea mixingangle0.222550.00056


12/12

Wienfrequencydisplacementlawconstant5.878933e100.000010e10HzK^-1Wienwavelengthdisplacementlawconstant2.8977685e-30.0000051e-3mK

Fundamental Physical Constants --- NIST, Complete Listing

Documents

Transcript of Fundamental Physical Constants --- NIST, Complete Listing