Definitions

# Planck pressure

The Planck pressure is the unit of pressure, denoted by pP, in the system of natural units known as Planck units.

$p_P = frac\left\{F_P\right\}\left\{l_P^2\right\} = frac\left\{c^7\right\}\left\{hbar G^2\right\} approx$ 4.63309 × 10113 Pa

where

$F_P$ is the Planck force

$c$ is the speed of light in a vacuum

$hbar$ is the reduced Planck's constant

$G$ is the gravitational constant

$l_P$ is the Planck length