Physical Constants

Speed of Light

c = 2.99792458 x 10⁸ m/s

Boltzmann Constant

k = 1.3801 x 10^-23 J/K = 8.620 x 10^-5 eV/K

Planck's Constant

h = 6.6262 x 10^-34 J/S

Stephan-Boltzmann Constant

σ = 5.6697 x 10^-8 W/m²/K⁴

Charge of an electron

1.6 x 10^-19 C

Permittivity of free space

8.849 x 10^-12 F/m

Impedance of free space

377 ohms

Electron Volt

1.602 x 10^-19 J