Value Of Boltzmann Constant

In thermodynamics, Boltzmann constant is the physical constant relating average kinetic energy of the gas particles and temperature of the gas represented by k or kB. The value of Boltzmann constant is measured using J/K or m2Kgs-2K-1. Which is mostly observed in Boltzmann’s entropy formula and Planck’s law of Black body radiation.

Value Of k

The values of Boltzmann constant is got by dividing gas constant R by Avogadro’s number NA. The value of k or kB is

Boltzmann constant k or kB = 1.3806452 × 10-23 J/K.

Value Of Boltzmann Constant In eV

The value of Boltzmann constant in eV is 8.6173303 × 10-5 eV/K

The value of Boltzmann constant can be expressed in various units. The table given below comprised of the value of k along with different units.

Value Of k Units
1.3806452 × 10-23 m2.Kg.s-2.K-1
8.6173303 × 10-5 eV.K-1
1.38064852 × 10-16 erg.K-1

Boltzmann Constant

The Boltzmann constant is introduced by Max Plank and named after Ludwig Boltzmann. It is a physical constant obtained by taking the ratio of two constants namely gas constant and Avogadro number.

Boltzmann constant Formula

The behavior of gases made to understand a step closer by Planck and Boltzmann by introducing constants. Boltzmann constant is mathematically expressed as-



  • K is Boltzmann’s constant.
  • NA is Avogadro number.
  • R is the gas constant.

Hope you got to know the value of Boltzmann constant or value of k or value of kb in different units along with the Boltzmann Constant formula, definition in Physics.

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