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Entropy of a Black Hole Calculator

The Entropy of a Black Hole calculator computes the entropy of black hole in joule per kelvin based on the given mass of a black hole in kg. 

See Also | Black hole thermodynamics - Wikipedia






S = $\frac{8\pi^{2}GM^{2}k}{hc}$







Instructions to Use

  • Enter the mass of the black hole in kg.
  • If mass is "2 x $10^{30}$ kg", then just type "2e+30".
  • If your result is "1.4E+54 J/K" then it is equal to "1.4 x $10^{54}$ J/K"

About Equation

S = $\frac{8\pi^{2}GM^{2}k}{hc}$

Here,
  • M is the mass of the black hole
  • G is the Gravitational constant 
  • h is the plank's constant
  • c is the speed of light
  • k is Boltzmann's constant2

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