Photon Energy calculator

Energy of a single photon at a given wavelength.

Category: Photonics

Formula: E = h·c/λ

Inputs

InputParameterUnitDefault
λlamnm532

Result with the default inputs

  • Energy: 2.3305 eV
  • Energy: 3.7339e-19 J
  • Frequency: 563.5197 THz

Open it with your own values: put each input in the address as a parameter, for example /calculators/photon-energy?lam=532. A unit other than the listed one goes in <parameter>_unit.

Read more: Wikipedia: Photon energy

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