Planck length

The Planck length ( $ℓ P$ ) is a very small unit of length. It is calculated from three physical constants: the speed of light, the Planck constant, and the gravitational constant.

It is about 1.616255×10⁻³⁵ m or about 10⁻²⁰ times the size of a proton. It is one of the Planck units, defined by Max Planck. It is an important length for quantum gravity because it may be the size of the smallest black holes.^[1]

Related pagesEdit

Planck time

ReferencesEdit

↑ Baez, John. "The Planck Length".

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[1] Baez, John. "The Planck Length".

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