Frequency of Light Calculator
Compute light frequency and photon energy from wavelength.
Instructions
1
Enter wavelength
Provide the light wavelength in nanometers (nm).
2
Calculate
The frequency and photon energy will be computed.
Formula
c = fλ → f = c / λ
E = h f
Example: λ = 532 nm → f ≈ 563.5 THz, E ≈ 2.33 eV
About Frequency of Light Calculator
Converts wavelength to frequency and photon energy using fundamental relations, useful for optics, spectroscopy, and laser applications.
Common Questions
What units are used?
Wavelength in nm, frequency in THz, photon energy in eV.
Does this handle media other than vacuum?
This assumes vacuum (speed c). For media, replace c with c/n (refractive index).