The Constants Menu

ConstantsMathematics

Display Pi, Euler Number or Golden Ratio.

ConstantsElectromagnetism

Display Light Speed, Elementary Charge, Impedance of Vacuum, Permeability of Vacuum or Permittivity of Vacuum.

ConstantsAtomic & Nuclear

Display Planck's Constant, Elementary Charge or Fine-Structure Constant.

ConstantsThermodynamics

Display Boltzmann Constant, Atomic Mass Unit, Molar Gas Constant, Stefan-Boltzmann Constant or Avogadro's Number.

ConstantsGravitation

Display Constant of Gravitation or Earth Acceleration.