Wavelength to Energy Calculator

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Wavelength of the photon.
Photon energyVisible light
2.2543

Energy carried by a single photon at the given wavelength or frequency.

Energy (eV)2.2543
Energy (J)0
Energy (kJ/mol)217.503
Wavelength (nm)550
Frequency (THz)545.0772
Spectrum regionVisible light
2.2543 eV
Microwave/Radio<0.001Infrared0.001-1.6Visible light1.6-3.3Ultraviolet3.3-10X-ray / Gamma10+

Visible light: 2.254 eV per photon.

  • This photon carries 2.254 eV, equivalent to 3.612e-19 J or 217.50 kJ per mole of photons.
  • The wavelength is 550.00 nm and the frequency is 545.08 THz.
  • This is green light in the visible spectrum.

Next stepMultiply by Avogadro's number (6.022 x 10^23) to get the total energy per mole, already shown in the kJ/mol output above.

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