Schwarzschild radius

The equation for the Schwarzschild radius is

<math>R_{sch} = \frac{2GM}{c^2}</math>

where

R_sch is the Schwarzschild radius,

<math>G</math> is the gravitational constant

6.67 10^–11 N m² / kg²

M is the mass of the black hole

<math>c^2</math> is the speed of light squared

(299,792,548 m/s)² = 8.98755 × 10¹⁶ m²/s²