# Planck Constant

on . Posted in Relativity

Planck constant, abbreviated as h, is a fundamental physical constant that relates the energy of one photon of electromagnetic waves to the frequency of that wave used in classic mechanics and quantum mechanics.  Planck units are based on physical constants rather than human scales.

## Planck Constant Formula

$$\large{ E = h\;f }$$
Symbol English Metric
$$\large{ E }$$ = energy $$\large{ lbf-ft }$$   $$\large{ J }$$
$$\large{ f }$$ = frequency $$\large{Hz}$$ $$\large{s{-1}}$$
$$\large{ h }$$ = Planck constant $$\large{\frac{lbf-ft}{sec}}$$  $$\large{J-s}$$

## Planck Constant

$$\large{h = 6.6260693\;x\; 10^{-34} \;\; J-s }$$     (Planck Constant)

$$\large{ l_p = 1.616, 229 \;x\;10^{-35}\;m }$$     (Planck Length)

$$\large{ m_p = 2.176, 435 \;x\;10^{-8}\;kg }$$     (Planck Mass)

$$\large{ t_p = 5.391, 247 \;x\;10^{-44}\;s }$$     (Planck Time)

$$\large{ E_p = 1.956 \;x\;10^{9}\;J }$$     (Planck Energy)

$$\large{ T_p = 1.416, 785 \;x\;10^{32}\;K }$$     (Planck Temperature)