List of Set of Constants
Each dataset listed below exports by default only the full long names of the constants. Short aliases are provided for convenience, but they are not exported, to avoid polluting the main namespace with dozens of short-named variables. Users can to import the short names of the variables they use most frequently, as shown in the examples above.
| Long name | Short | Value | Unit |
|---|---|---|---|
AtomicMassConstant | m_u | 1.66053906892e-27 | kg |
AvogadroConstant | N_A | 6.02214076e23 | mol^-1 |
BohrMagneton | μ_B | 9.2740100657e-24 | J T^-1 |
BohrRadius | a_0 | 5.29177210544e-11 | m |
BoltzmannConstant | k_B | 1.380649e-23 | J K^-1 |
CharacteristicImpedanceOfVacuum | Z_0 | 376.730313412 | Ω |
DiracConstant | ħ | 1.0545718176461565e-34 | J s |
DiracConstantTimesSpeedOfLight | ħc | 3.16152677349669e-26 | J m |
EarthMass | M🜨 | 5.9722e24 | kg |
EarthRadius | R🜨 | 6.3781e6 | m |
ElectromagneticFineStructureConstant | α | 0.0072973525643 | |
ElectronMass | m_e | 9.1093837139e-31 | kg |
ElementaryCharge | e | 1.602176634e-19 | C |
FermiCouplingConstant | G_F | 1.4365331758849134e-11 | J^-2 |
FineStructureConstant | α | 0.0072973525643 | |
GravitationalFineStructureConstant | α_G | 5.906149413805094e-39 | |
MassChargedBosonWeakInteraction | m_W | 1.432707559793125e-25 | kg |
MassChargedPion | m_πᶜ | 2.4880681963975513e-28 | kg |
MassDeltaPlus | m_Δ⁺ | 2.19623948744557e-27 | kg |
MassElectron | m_e | 9.1093837139e-31 | kg |
MassGluon | m_g | 0.0 | kg |
MassHiggsBoson | m_H | 2.2318927258781276e-25 | kg |
MassMuon | m_μ | 1.8835316270491198e-28 | kg |
MassNeutralBosonWeakInteraction | m_Z⁰ | 1.6255737530940473e-25 | kg |
MassNeutralPion | m_π⁰ | 2.406180016631844e-28 | kg |
MassNeutron | m_n | 1.67492750056e-27 | kg |
MassPhoton | m_γ | 0.0 | kg |
MassProton | m_p | 1.67262192595e-27 | kg |
MassQuarkBottom | m_qb | 7.456874818169496e-27 | kg |
MassQuarkCharm | m_qc | 2.2693286262323135e-27 | kg |
MassQuarkDown | m_qd | 8.37851103165112e-30 | kg |
MassQuarkStrange | m_qs | 1.6667888967220845e-28 | kg |
MassQuarkTop | m_qt | 3.0761614119611e-25 | kg |
MassQuarkUp | m_qu | 3.8505497507162585e-30 | kg |
MassTau | m_τ | 3.1676654483982603e-27 | kg |
MolarGasConstant | R | 8.31446261815324 | J K^-1 mol^-1 |
NeutronMass | m_n | 1.67492750056e-27 | kg |
NewtonianConstantOfGravitation | G | 6.6743e-11 | m^3 kg^-1 s^-2 |
PlanckConstant | h | 6.62607015e-34 | J s |
PlanckEnergy | E_Pl | 5.413655629189003e9 | J |
PlanckLength | ℓ_Pl | 1.6162550244237053e-35 | m |
PlanckMass | m_Pl | 2.1764343427178984e-8 | kg |
PlanckTime | t_Pl | 5.391246448313604e-44 | s |
ProtonMass | m_p | 1.67262192595e-27 | kg |
ReducedFermiCouplingConstant | G_F0 | 4.5437957e14 | J^-2 |
ReducedPlanckConstant | ħ | 1.0545718176461565e-34 | J s |
RydbergConstant | R_∞ | 1.0973731568157e7 | m^-1 |
SinWeinbergAngleSquared | sinθW² | 0.2229 | |
SolarMass | M☉ | 1.98847e30 | kg |
SolarRadius | R☉ | 6.9566e11 | m |
SpeedOfLightInVacuum | c_0 | 2.99792458e8 | m s^-1 |
StandardAccelerationOfGravitation | g_n | 9.80665 | m s^-2 |
StandardAtmosphere | atm | 101325.0 | Pa |
StefanBoltzmannConstant | σ | 5.6703744191844294e-8 | W K^-4 m^-2 |
StrongFineStructureConstant | α_s | 0.1183 | |
ThomsonCrossSection | σ_e | 6.6524587051e-29 | m^2 |
VacuumElectricPermittivity | ε_0 | 8.8541878188e-12 | F m^-1 |
VacuumMagneticPermeability | μ_0 | 1.25663706127e-6 | N A^-2 |
WeinbergAngle | θ_W | 0.49169738195642276 | |
WienFrequencyDisplacementLawConstant | b′ | 5.878925757646825e10 | Hz K^-1 |
WienWavelengthDisplacementLawConstant | b | 0.0028977719551851727 | K m |
AtomicMassConstant | m_u | 1.66053906892e-27 | kg |
AvogadroConstant | N_A | 6.02214076e23 | mol^-1 |
BohrMagneton | μ_B | 9.2740100657e-24 | J T^-1 |
BohrRadius | a_0 | 5.29177210544e-11 | m |
BoltzmannConstant | k_B | 1.380649e-23 | J K^-1 |
CharacteristicImpedanceOfVacuum | Z_0 | 376.730313412 | Ω |
ElectronMass | m_e | 9.1093837139e-31 | kg |
ElementaryCharge | e | 1.602176634e-19 | C |
FineStructureConstant | α | 0.0072973525643 | |
MolarGasConstant | R | 8.31446261815324 | J K^-1 mol^-1 |
NeutronMass | m_n | 1.67492750056e-27 | kg |
NewtonianConstantOfGravitation | G | 6.6743e-11 | m^3 kg^-1 s^-2 |
PlanckConstant | h | 6.62607015e-34 | J s |
ProtonMass | m_p | 1.67262192595e-27 | kg |
ReducedPlanckConstant | ħ | 1.0545718176461565e-34 | J s |
RydbergConstant | R_∞ | 1.0973731568157e7 | m^-1 |
SpeedOfLightInVacuum | c_0 | 2.99792458e8 | m s^-1 |
StandardAccelerationOfGravitation | g_n | 9.80665 | m s^-2 |
StandardAtmosphere | atm | 101325.0 | Pa |
StefanBoltzmannConstant | σ | 5.6703744191844294e-8 | W K^-4 m^-2 |
ThomsonCrossSection | σ_e | 6.6524587051e-29 | m^2 |
VacuumElectricPermittivity | ε_0 | 8.8541878188e-12 | F m^-1 |
VacuumMagneticPermeability | μ_0 | 1.25663706127e-6 | N A^-2 |
WienFrequencyDisplacementLawConstant | b′ | 5.878925757646825e10 | Hz K^-1 |
WienWavelengthDisplacementLawConstant | b | 0.0028977719551851727 | K m |