Calculate the wavelength of a photon from its energy or frequency. This calculator is useful for determining the color of light or the type of electromagnetic radiation corresponding to a given energy.
Enter your values below
Energy of the photon
Frequency of the photon
How this calculator works
Wavelength equals Planck's constant times speed of light divided by energy, or speed of light divided by frequency.
Common questions about this calculator
These calculators are for educational and informational purposes only. While we strive for accuracy, results should be verified for critical applications. Always consult authoritative sources for engineering or scientific work.
