Calculate the Schwarzschild radius of a black hole - the radius at which the escape velocity equals the speed of light.
Enter your values below
How this calculator works
The Schwarzschild radius is the radius of the event horizon of a non-rotating black hole.
Common questions about this calculator
These calculators are for educational and informational purposes only. While we strive for accuracy, results should be verified for critical applications. Always consult authoritative sources for engineering or scientific work.