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THE FEUTEX TOOLKIT

Photon Energy and Photon Count

Calculate photon energy and number of photons in a monochromatic energy packet.

Chemistry workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaEnergy per photon = 6.62607015e-34*299792458/(w*1e-9); Photon count = energy*w*1e-9/(6.62607015e-34*299792458); Energy per mole photons = 6.62607015e-34*299792458/(w*1e-9)*6.02214076e23/1000
Sources and model references

Worked example

Inputs

Wavelength
500 nm
Total optical energy
1 J

Expected results

Energy per photon
3.972891714e-19 J
Photon count
2.517058284e+18 photons
Energy per mole photons
239.2531313 kJ/mol

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Calculate photon energy and number of photons in a monochromatic energy packet.
  2. Set wavelength, total optical energy in the indicated units.
  3. Calculate and compare energy per photon, photon count, energy per mole photons.

Try this example

{
  "w": 500,
  "energy": 1
}

Accuracy and scope

Idealized educational model. Enter measured values in the displayed units; real systems may require additional corrections.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.