Physics | Calculators
- Angular Acceleration
- Atomic Mass
- Entropy of a Black Hole
- Equivalent Resistance
- Instantaneous Velocity
- Ohms Law
- Periodic Table Properties
- Pressure Conversion
- Sackur-Tetrode Equation Calculator – Entropy of an Ideal Gas
- Speed Conversion
- Star Color Finder (Actual Color of a Star)
- Star Location Finder (In the Night Sky)
- Unit Rate
- Weight Conversion
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