Photon Energy-Frequency Calculator

Calculate the energy of a photon from its frequency using E = h * f, the Planck-Einstein relation.

Hz

Energy

0.0000000000000000003313000 J

Energy (eV)2.068040 eV
Wavelength0.000000599600 m

Energy vs Frequency

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Formule

## Photon Energy from Frequency A photon's energy is directly proportional to its frequency. ### Formula **E = h f** - *h* = 6.626 x 10^-34 J s (Planck constant) - *f* = frequency in Hz The wavelength is lambda = c / f. Higher frequency (shorter wavelength) means higher energy.

Exemple Résolu

Green light at 500 THz (5e14 Hz).

  1. 01E = h f
  2. 02E = 6.626e-34 * 5e14
  3. 03E = 3.313e-19 J
  4. 04E = 3.313e-19 / 1.602e-19 = 2.069 eV
  5. 05lambda = 3e8 / 5e14 = 6e-7 m = 600 nm