Black Hole Schwarzschild Radius Calculator

In black holes, the term "photon sphere" defines the radius of the orbit of light around the black hole. For 3 solar masses, this radius is 13.5 km, 3/2 x the event horizon radius. The event horizon radius is also called the Schwarzschild radius. An online black hole Schwarzschild radius calculator is used to calculate the event horizon radius using the values of gravitational constant, light speed and body mass.

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A non-rotating black hole has an event horizon whose size is the Schwarzschild black hole radius. We can compute the Schwarzschild radius for any object using this online black hole Schwarzschild radius calculator.