Konstanta

 Dilihat 726 x  -A   +A

Fundamental Physical Constants

QuantityValueUncertaintyUnit
speed of light in vacuum299792458(exact)m s^-1
magn. constant12.566370614e-7(exact)N A^-2
electric constant8.854187817e-12(exact)F m^-1
characteristic impedance of vacuum376.730313461(exact)ohm
Newtonian constant of gravitation6.6742e-110.0010e-11m^3 kg^-1 s^-2
Newtonian constant of gravitation over h-bar c6.7087e-390.0010e-39(GeV/c^2)^-2
Planck constant6.6260693e-340.0000011e-34J s
Planck constant in eV s4.13566743e-150.00000035e-15eV s
Planck constant over 2 pi times c in MeV fm197.3269680.000017MeV fm
Planck constant over 2 pi1.05457168e-340.00000018e-34J s
Planck constant over 2 pi in eV s6.58211915e-160.00000056e-16eV s
Planck mass2.17645e-80.00016e-8kg
Planck temperature1.41679e320.00011e32K
Planck length1.61624e-350.00012e-35m
Planck time5.39121e-440.00040e-44s
elementary charge1.60217653e-190.00000014e-19C
elementary charge over h2.41798940e140.00000021e14A J^-1
magn. flux quantum2.06783372e-150.00000018e-15Wb
conductance quantum7.748091733e-50.000000026e-5S
inverse of conductance quantum12906.4037250.000043ohm
Josephson constant483597.879e90.041e9Hz V^-1
von Klitzing constant25812.8074490.000086ohm
Bohr magneton927.400949e-260.000080e-26J T^-1
Bohr magneton in eV/T5.788381804e-50.000000039e-5eV T^-1
Bohr magneton in Hz/T13.9962458e90.0000012e9Hz T^-1
Bohr magneton in inverse meters per tesla46.68645070.0000040m^-1 T^-1
Bohr magneton in K/T0.67171310.0000012K T^-1
nuclear magneton5.05078343e-270.00000043e-27J T^-1
nuclear magneton in eV/T3.152451259e-80.000000021e-8eV T^-1
nuclear magneton in MHz/T7.622593710.00000065MHz T^-1
nuclear magneton in inverse meters per tesla2.54262358e-20.00000022e-2m^-1 T^-1
nuclear magneton in K/T3.6582637e-40.0000064e-4K T^-1
fine-structure constant7.297352568e-30.000000024e-3
inverse fine-structure constant137.035999110.00000046
Rydberg constant10973731.5685250.000073m^-1
Rydberg constant times c in Hz3.289841960360e150.000000000022e15Hz
Rydberg constant times hc in J2.17987209e-180.00000037e-18J
Rydberg constant times hc in eV13.60569230.0000012eV
Bohr radius0.5291772108e-100.0000000018e-10m
Hartree energy4.35974417e-180.00000075e-18J
Hartree energy in eV27.21138450.0000023eV
quantum of circulation3.636947550e-40.000000024e-4m^2 s^-1
quantum of circulation times 27.273895101e-40.000000048e-4m^2 s^-1
Fermi coupling constant1.16639e-50.00001e-5GeV^-2
weak mixing angle0.222150.00076
electron mass9.1093826e-310.0000016e-31kg
electron mass in u5.4857990945e-40.0000000024e-4u
electron mass energy equivalent8.1871047e-140.0000014e-14J
electron mass energy equivalent in MeV0.5109989180.000000044MeV
electron-muon mass ratio4.83633167e-30.00000013e-3
electron-tau mass ratio2.87564e-40.00047e-4
electron-proton mass ratio5.4461702173e-40.0000000025e-4
electron-neutron mass ratio5.4386734481e-40.0000000038e-4
electron-deuteron mass ratio2.7244371095e-40.0000000013e-4
electron to alpha particle mass ratio1.37093355575e-40.00000000061e-4
electron charge to mass quotient-1.75882012e110.00000015e11C kg^-1
electron molar mass5.4857990945e-70.0000000024e-7kg mol^-1
Compton wavelength2.426310238e-120.000000016e-12m
Compton wavelength over 2 pi386.1592678e-150.0000026e-15m
classical electron radius2.817940325e-150.000000028e-15m
Thomson cross section0.665245873e-280.000000013e-28m^2
electron magn. moment-928.476412e-260.000080e-26J T^-1
electron magn. moment to Bohr magneton ratio-1.00115965218590.0000000000038
electron magn. moment to nuclear magneton ratio-1838.281971070.00000085
electron magn. moment anomaly1.1596521859e-30.0000000038e-3
electron g factor-2.00231930437180.0000000000075
electron-muon magn. moment ratio206.76698940.0000054
electron-proton magn. moment ratio-658.21068620.0000066
electron to shielded proton magn. moment ratio-658.22759560.0000071
electron-neutron magn. moment ratio960.920500.00023
electron-deuteron magn. moment ratio-2143.9234930.000023
electron to shielded helion magn. moment ratio864.0582550.000010
electron gyromagn. ratio1.76085974e110.00000015e11s^-1 T^-1
electron gyromagn. ratio over 2 pi28024.95320.0024MHz T^-1
muon mass1.88353140e-280.00000033e-28kg
muon mass in u0.11342892640.0000000030u
muon mass energy equivalent1.69283360e-110.00000029e-11J
muon mass energy equivalent in MeV105.65836920.0000094MeV
muon-electron mass ratio206.76828380.0000054
muon-tau mass ratio5.94592e-20.00097e-2
muon-proton mass ratio0.11260952690.0000000029
muon-neutron mass ratio0.11245451750.0000000029
muon molar mass0.1134289264e-30.0000000030e-3kg mol^-1
muon Compton wavelength11.73444105e-150.00000030e-15m
muon Compton wavelength over 2 pi1.867594298e-150.000000047e-15m
muon magn. moment-4.49044799e-260.00000040e-26J T^-1
muon magn. moment to Bohr magneton ratio-4.84197045e-30.00000013e-3
muon magn. moment to nuclear magneton ratio-8.890596980.00000023
muon magn. moment anomaly1.16591981e-30.00000062e-3
muon g factor-2.00233183960.0000000012
muon-proton magn. moment ratio-3.1833451180.000000089
tau mass3.16777e-270.00052e-27kg
tau mass in u1.907680.00031u
tau mass energy equivalent2.84705e-100.00046e-10J
tau mass energy equivalent in MeV1776.990.29MeV
tau-electron mass ratio3477.480.57
tau-muon mass ratio16.81830.0027
tau-proton mass ratio1.893900.00031
tau-neutron mass ratio1.891290.00031
tau molar mass1.90768e-30.00031e-3kg mol^-1
tau Compton wavelength0.69772e-150.00011e-15m
tau Compton wavelength over 2 pi0.111046e-150.000018e-15m
proton mass1.67262171e-270.00000029e-27kg
proton mass in u1.007276466880.00000000013u
proton mass energy equivalent1.50327743e-100.00000026e-10J
proton mass energy equivalent in MeV938.2720290.000080MeV
proton-electron mass ratio1836.152672610.00000085
proton-muon mass ratio8.880243330.00000023
proton-tau mass ratio0.5280120.000086
proton-neutron mass ratio0.998623478720.00000000058
proton charge to mass quotient9.57883376e70.00000082e7C kg^-1
proton molar mass1.00727646688e-30.00000000013e-3kg mol^-1
proton Compton wavelength1.3214098555e-150.0000000088e-15m
proton Compton wavelength over 2 pi0.2103089104e-150.0000000014e-15m
proton magn. moment1.41060671e-260.00000012e-26J T^-1
proton magn. moment to Bohr magneton ratio1.521032206e-30.000000015e-3
proton magn. moment to nuclear magneton ratio2.7928473510.000000028
proton g factor5.5856947010.000000056
proton-neutron magn. moment ratio-1.459898050.00000034
shielded proton magn. moment1.41057047e-260.00000012e-26J T^-1
shielded proton magn. moment to Bohr magneton ratio1.520993132e-30.000000016e-3
shielded proton magn. moment to nuclear magneton ratio2.7927756040.000000030
proton magn. shielding correction25.689e-60.015e-6
proton gyromagn. ratio2.67522205e80.00000023e8s^-1 T^-1
proton gyromagn. ratio over 2 pi42.57748130.0000037MHz T^-1
shielded proton gyromagn. ratio2.67515333e80.00000023e8s^-1 T^-1
shielded proton gyromagn. ratio over 2 pi42.57638750.0000037MHz T^-1
proton rms charge radius0.8750e-150.0068e-15m
neutron mass1.67492728e-270.00000029e-27kg
neutron mass in u1.008664915600.00000000055u
neutron mass energy equivalent1.50534957e-100.00000026e-10J
neutron mass energy equivalent in MeV939.5653600.000081MeV
neutron-electron mass ratio1838.68365980.0000013
neutron-muon mass ratio8.892484020.00000023
neutron-tau mass ratio0.5287400.000086
neutron-proton mass ratio1.001378418700.00000000058
neutron molar mass1.00866491560e-30.00000000055e-3kg mol^-1
neutron Compton wavelength1.3195909067e-150.0000000088e-15m
neutron Compton wavelength over 2 pi0.2100194157e-150.0000000014e-15m
neutron magn. moment-0.96623645e-260.00000024e-26J T^-1
neutron magn. moment to Bohr magneton ratio-1.04187563e-30.00000025e-3
neutron magn. moment to nuclear magneton ratio-1.913042730.00000045
neutron g factor-3.826085460.00000090
neutron-electron magn. moment ratio1.04066882e-30.00000025e-3
neutron-proton magn. moment ratio-0.684979340.00000016
neutron to shielded proton magn. moment ratio-0.684996940.00000016
neutron gyromagn. ratio1.83247183e80.00000046e8s^-1 T^-1
neutron gyromagn. ratio over 2 pi29.16469500.0000073MHz T^-1
deuteron mass3.34358335e-270.00000057e-27kg
deuteron mass in u2.013553212700.00000000035u
deuteron mass energy equivalent3.00506285e-100.00000051e-10J
deuteron mass energy equivalent in MeV1875.612820.00016MeV
deuteron-electron mass ratio3670.48296520.0000018
deuteron-proton mass ratio1.999007500820.00000000041
deuteron molar mass2.01355321270e-30.00000000035e-3kg mol^-1
deuteron magn. moment0.433073482e-260.000000038e-26J T^-1
deuteron magn. moment to Bohr magneton ratio0.4669754567e-30.0000000050e-3
deuteron magn. moment to nuclear magneton ratio0.85743823290.0000000092
deuteron-electron magn. moment ratio-4.664345548e-40.000000050e-4
deuteron-proton magn. moment ratio0.30701220840.0000000045
deuteron-neutron magn. moment ratio-0.448206520.00000011
deuteron rms charge radius2.1394e-150.0028e-15m
helion mass5.00641214e-270.00000086e-27kg
helion mass in u3.01493224340.0000000058u
helion mass energy equivalent4.49953884e-100.00000077e-10J
helion mass energy equivalent in MeV2808.391420.00024MeV
helion-electron mass ratio5495.8852690.000011
helion-proton mass ratio2.99315266710.0000000058
helion molar mass3.0149322434e-30.0000000058e-3kg mol^-1
shielded helion magn. moment-1.074553024e-260.000000093e-26J T^-1
shielded helion magn. moment to Bohr magneton ratio-1.158671474e-30.000000014e-3
shielded helion magn. moment to nuclear magneton ratio-2.1274977230.000000025
shielded helion to proton magn. moment ratio-0.7617665620.000000012
shielded helion to shielded proton magn. moment ratio-0.76178613130.0000000033
shielded helion gyromagn. ratio2.03789470e80.00000018e8s^-1 T^-1
shielded helion gyromagn. ratio over 2 pi32.43410150.0000028MHz T^-1
alpha particle mass6.6446565e-270.0000011e-27kg
alpha particle mass in u4.0015061791490.000000000056u
alpha particle mass energy equivalent5.9719194e-100.0000010e-10J
alpha particle mass energy equivalent in MeV3727.379170.00032MeV
alpha particle-electron mass ratio7294.29953630.0000032
alpha particle-proton mass ratio3.972599689070.00000000052
alpha particle molar mass4.001506179149e-30.000000000056e-3kg mol^-1
Avogadro constant6.0221415e230.0000010e23mol^-1
atomic mass constant1.66053886e-270.00000028e-27kg
atomic mass constant energy equivalent1.49241790e-100.00000026e-10J
atomic mass constant energy equivalent in MeV931.4940430.000080MeV
Faraday constant96485.33830.0083C mol^-1
Faraday constant for conventional electric current96485.3360.016C_90 mol^-1
molar Planck constant3.990312716e-100.000000027e-10J s mol^-1
molar Planck constant times c0.119626565720.00000000080J m mol^-1
molar gas constant8.3144720.000015J mol^-1 K^-1
Boltzmann constant1.3806505e-230.0000024e-23J K^-1
Boltzmann constant in eV/K8.617343e-50.000015e-5eV K^-1
Boltzmann constant in Hz/K2.0836644e100.0000036e10Hz K^-1
Boltzmann constant in inverse meters per kelvin69.503560.00012m^-1 K^-1
molar volume of ideal gas (273.15 K, 101.325 kPa)22.413996e-30.000039e-3m^3 mol^-1
Loschmidt constant (273.15 K, 101.325 kPa)2.6867773e250.0000047e25m^-3
molar volume of ideal gas (273.15 K, 100 kPa)22.710981e-30.000040e-3m^3 mol^-1
Sackur-Tetrode constant (1 K, 100 kPa)-1.15170470.0000044
Sackur-Tetrode constant (1 K, 101.325 kPa)-1.16486770.0000044
Stefan-Boltzmann constant5.670400e-80.000040e-8W m^-2 K^-4
first radiation constant3.74177138e-160.00000064e-16W m^2
first radiation constant for spectral radiance1.19104282e-160.00000020e-16W m^2 sr^-1
second radiation constant1.4387752e-20.0000025e-2m K
Wien displacement law constant2.8977685e-30.0000051e-3m K
molar mass of carbon-1212e-3(exact)kg mol^-1
molar mass constant1e-3(exact)kg mol^-1
conventional value of Josephson constant483597.9e9(exact)Hz V^-1
conventional value of von Klitzing constant25812.807(exact)ohm
standard atmosphere101325(exact)Pa
standard acceleration of gravity9.80665(exact)m s^-2
Cu x unit1.00207710e-130.00000029e-13m
Mo x unit1.00209966e-130.00000053e-13m
Angstrom star1.00001509e-100.00000090e-10m
lattice parameter of silicon543.102122e-120.000020e-12m
{220} lattice spacing of silicon192.0155965e-120.0000070e-12m
molar volume of silicon12.0588382e-60.0000024e-6m^3 mol^-1
electron volt1.60217653e-190.00000014e-19J
unified atomic mass unit1.66053886e-270.00000028e-27kg
natural unit of velocity299792458(exact)m s^-1
natural unit of action1.05457168e-340.00000018e-34J s
natural unit of action in eV s6.58211915e-160.00000056e-16eV s
natural unit of mass9.1093826e-310.0000016e-31kg
natural unit of energy8.1871047e-140.0000014e-14J
natural unit of energy in MeV0.5109989180.000000044MeV
natural unit of momentum2.73092419e-220.00000047e-22kg m s^-1
natural unit of momentum in MeV/c0.5109989180.000000044MeV/c
natural unit of length386.1592678e-150.0000026e-15m
natural unit of time1.2880886677e-210.0000000086e-21s
atomic unit of charge1.60217653e-190.00000014e-19C
atomic unit of mass9.1093826e-310.0000016e-31kg
atomic unit of action1.05457168e-340.00000018e-34J s
atomic unit of length0.5291772108e-100.0000000018e-10m
atomic unit of energy4.35974417e-180.00000075e-18J
atomic unit of time2.418884326505e-170.000000000016e-17s
atomic unit of force8.2387225e-80.0000014e-8N
atomic unit of velocity2.1876912633e60.0000000073e6m s^-1
atomic unit of momentum1.99285166e-240.00000034e-24kg m s^-1
atomic unit of current6.62361782e-30.00000057e-3A
atomic unit of charge density1.081202317e120.000000093e12C m^-3
atomic unit of electric potential27.21138450.0000023V
atomic unit of electric field5.14220642e110.00000044e11V m^-1
atomic unit of electric field gradient9.71736182e210.00000083e21V m^-2
atomic unit of electric dipole moment8.47835309e-300.00000073e-30C m
atomic unit of electric quadrupole moment4.48655124e-400.00000039e-40C m^2
atomic unit of electric polarizablity1.648777274e-410.000000016e-41C^2 m^2 J^-1
atomic unit of 1st hyperpolarizablity3.20636151e-530.00000028e-53C^3 m^3 J^-2
atomic unit of 2nd hyperpolarizablity6.2353808e-650.0000011e-65C^4 m^4 J^-3
atomic unit of magn. flux density2.35051742e50.00000020e5T
atomic unit of magn. dipole moment1.85480190e-230.00000016e-23J T^-1
atomic unit of magnetizability7.89103660e-290.00000013e-29J T^-2
atomic unit of permittivity1.112650056e-10(exact)F m^-1
joule-kilogram relationship1.112650056e-17(exact)kg
joule-inverse meter relationship5.03411720e240.00000086e24m^-1
joule-hertz relationship1.50919037e330.00000026e33Hz
joule-kelvin relationship7.242963e220.000013e22K
joule-electron volt relationship6.24150947e180.00000053e18eV
joule-atomic mass unit relationship6.7005361e90.0000011e9u
joule-hartree relationship2.29371257e170.00000039e17E_h
kilogram-joule relationship8.987551787e16(exact)J
kilogram-inverse meter relationship4.52443891e410.00000077e41m^-1
kilogram-hertz relationship1.35639266e500.00000023e50Hz
kilogram-kelvin relationship6.509650e390.000011e39K
kilogram-electron volt relationship5.60958896e350.00000048e35eV
kilogram-atomic mass unit relationship6.0221415e260.0000010e26u
kilogram-hartree relationship2.06148605e340.00000035e34E_h
inverse meter-joule relationship1.98644561e-250.00000034e-25J
inverse meter-kilogram relationship2.21021881e-420.00000038e-42kg
inverse meter-hertz relationship299792458(exact)Hz
inverse meter-kelvin relationship1.4387752e-20.0000025e-2K
inverse meter-electron volt relationship1.23984191e-60.00000011e-6eV
inverse meter-atomic mass unit relationship1.3310250506e-150.0000000089e-15u
inverse meter-hartree relationship4.556335252760e-80.000000000030e-8E_h
hertz-joule relationship6.6260693e-340.0000011e-34J
hertz-kilogram relationship7.3724964e-510.0000013e-51kg
hertz-inverse meter relationship3.335640951e-9(exact)m^-1
hertz-kelvin relationship4.7992374e-110.0000084e-11K
hertz-electron volt relationship4.13566743e-150.00000035e-15eV
hertz-atomic mass unit relationship4.439821667e-240.000000030e-24u
hertz-hartree relationship1.519829846006e-160.000000000010e-16E_h
kelvin-joule relationship1.3806505e-230.0000024e-23J
kelvin-kilogram relationship1.5361808e-400.0000027e-40kg
kelvin-inverse meter relationship69.503560.00012m^-1
kelvin-hertz relationship2.0836644e100.0000036e10Hz
kelvin-electron volt relationship8.617343e-50.000015e-5eV
kelvin-atomic mass unit relationship9.251098e-140.000016e-14u
kelvin-hartree relationship3.1668153e-60.0000055e-6E_h
electron volt-joule relationship1.60217653e-190.00000014e-19J
electron volt-kilogram relationship1.78266181e-360.00000015e-36kg
electron volt-inverse meter relationship8.06554445e50.00000069e5m^-1
electron volt-hertz relationship2.41798940e140.00000021e14Hz
electron volt-kelvin relationship1.1604505e40.0000020e4K
electron volt-atomic mass unit relationship1.073544171e-90.000000092e-9u
electron volt-hartree relationship3.67493245e-20.00000031e-2E_h
atomic mass unit-joule relationship1.49241790e-100.00000026e-10J
atomic mass unit-kilogram relationship1.66053886e-270.00000028e-27kg
atomic mass unit-inverse meter relationship7.513006608e140.000000050e14m^-1
atomic mass unit-hertz relationship2.252342718e230.000000015e23Hz
atomic mass unit-kelvin relationship1.0809527e130.0000019e13K
atomic mass unit-electron volt relationship931.494043e60.000080e6eV
atomic mass unit-hartree relationship3.423177686e70.000000023e7E_h
hartree-joule relationship4.35974417e-180.00000075e-18J
hartree-kilogram relationship4.85086960e-350.00000083e-35kg
hartree-inverse meter relationship2.194746313705e70.000000000015e7m^-1
hartree-hertz relationship6.579683920721e150.000000000044e15Hz
hartree-kelvin relationship3.1577465e50.0000055e5K
hartree-electron volt relationship27.21138450.0000023eV
hartree-atomic mass unit relationship2.921262323e-80.000000019e-8u

Source: Peter J. Mohr and Barry N. Taylor, CODATA Recommended Values of the Fundamental Physical Constants: 2002, published in Rev. Mod. Phys. vol. 77(1) 1-107 (2005).

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