Compton Scattering Calculator

Wavelength shift, scattered photon energy and electron recoil energy for Compton scattering off a free electron.

How to use the Compton Scattering Calculator

Enter or select: Incident wavelength λ, Scattering angle θ.
The results (Compton wavelength h/(mₑc), Wavelength shift Δλ, Scattered wavelength λ′, Incident photon energy, Scattered photon energy, Electron kinetic energy) are calculated instantly as you type.
Use “Copy link” to share the calculation with the same input values.