Planck pressure

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

$p_{\text{P}}={\frac {F_{\text{P}}}{l_{\text{P}}^{2}}}={\frac {c^{7}}{\hbar G^{2}}}\approx$ 4.63309 × 10¹¹³ Pa

where

$F_{\text{P}}$ 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

$l_{\text{P}}$ is the Planck length

See also

• Natural units
• Planck's constant

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