| Constant | Symbol | Value | Units | | Speed of light in vacuum | c0 | 299792458 | m/s | | Magnetic constant | e0 | 12.566370614E-7 | N/A^2 | | Electric constant | m0 | 8.854187817E-12 | F/m | | Characteristic Impedance of Vacuum | | 376.730313461 | Ohm | | Newtonian constant of Gravitation | | 6.6742E-11 | m^3/kg s^2 | | Planck constant | h | 6.6260693E-34 | J s | | Planck constant in eV s | h | 4.13566743E-15 | eV s | | Planck constant over 2 π | h/2π | 1.05457168E-34 | J s | | Planck constant over 2 π in eV s | h/2π | 6.58211915E-16 | eV s | | Elementary charge | e | 1.60217653E-19 | C | | Fine-Structure constant | | 7.297352568E-3 | - | | Inverse Fine-Structure constant | | 137.03599911 | - | | Bohr radius | | 0.5291772108E-10 | m | | Electron Mass | | 9.1093826E-31 | kg | | Electron Mass in u | | 5.4857990945E-4 | u | | Electron Mass Energy equivalent | | 8.1871047E-14 | J | | Electron Mass Energy equivalent in MeV | | 0.510998918 | MeV | | Compton Wavelength | | 2.426310238E-12 | m | | Compton Wavelength over 2 pi | | 386.1592678E-15 | m | | Proton mass | | 1.67262171E-27 | kg | | Proton mass in u | | 1.00727646688 | u | | Proton mass energy equivalent | | 1.50327743E-10 | J | | Proton mass energy equivalent in MeV | | 938.272029 | MeV | | Neutron mass | | 1.67492728E-27 | kg | | Neutron mass in u | | 1.00866491560 | u | | Neutron mass energy equivalent | | 1.50534957E-10 | J | | Neutron mass energy equivalent in MeV | | 939.565360 | MeV | | Alpha Particle Mass | | 6.6446565E-27 | kg | | Alpha Particle Mass in u | | 4.001506179149 | u | | Alpha Particle Mass Energy equivalent | | 5.9719194E-10 | J | | Alpha Particle Mass Energy equivalent in MeV | | 3727.37917 | MeV | | Avogadro constant | | 6.0221415E+23 | 1/mol | | Atomic Mass constant | | 1.66053886E-27 | kg | | Atomic Mass constant energy equivalent | | 1.49241790E-10 | J | | Atomic Mass constant energy equivalent in MeV | | 931.494043 | MeV | | Faraday constant | | 96485.3383 | C / mol | | Molar Gas constant | | 8.314472 | J / mol K | | Boltzmann constant | | 1.3806505E-23 | J / K | | Boltzmann constant in eV/K | | 8.617343E-5 | eV / K | | Boltzmann constant in Hz/K | | 2.0836644E+10 | Hz / K | | Boltzmann constant in inverse meters per Kelvin | | 69.50356 | 1 / m K | | Molar Volume of Ideal Gas (273.15 K, 101.325 kPa) | | 22.413996E-3 | m^3 / mol | | Loschmidt constant (273.15 K, 101.325 kPa) | | 2.6867773E+25 | 1 / m^3 | | Wien Displacement Law constant | | 2.8977685E-3 | m K | | Electron Volt | | 1.602176 53E-19 | J | | Unified Atomic Mass unit | | 1.66053886E-27 | kg |
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Constants
