Electromagnetic Wave Calculator

Calculate the wavelength, photon energy, and momentum of an electromagnetic wave from its frequency using c = fλ and E = hf.

Inputs

Frequency

Tab to move between fields

Results

Wavelength

600

Photon Energy

2.07 eV

Wavelength Unitnm

EM Spectrum RegionVisible light

Wave Number10,471,975.51 rad/m

How to Use This Calculator

Enter Frequency.
Review Wavelength and Photon Energy (eV).
Use Wavelength Unit and EM Spectrum Region to inform your decision.
Use the chart to visualize the results and explore different scenarios by adjusting inputs.

How the result changes with Frequency

Frequency	Wavelength	Photon Energy
1,000,000,000,000,000,100,000,000	0	4,136,079,900.12 eV
3,500,000,000,000,000,000,000,000	0	14,476,279,650.44 eV
6,500,000,000,000,001,000,000,000	0	26,884,519,350.81 eV
9,000,000,000,000,001,000,000,000	0	37,224,719,101.12 eV

What each input means

Frequency: Frequency of the electromagnetic wave. Visible light: ~4.3×10¹⁴ to 7.5×10¹⁴ Hz.

How this is calculated

Worked example, using the default values

Identify Input Parameters
Frequency = 500000000000000 = 1 input(s) provided
Calculate Wavelength
Wavelength = displayWavelength
600 = 600
Calculate Photon Energy
Photon Energy
2.068039950062422 = 2.068039950062422
Calculate Wavelength Unit
Wavelength Unit
nm = nm
Calculate EM Spectrum Region
EM Spectrum Region
Visible light = Visible light

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