Compton Wavelength Calculator
Compute λC = h/(mc) for common particles or a custom mass.
Instructions
1
Select a particle
Choose electron, proton, neutron, or enter a custom mass.
2
Calculate λC
Click Calculate to see the Compton wavelength in picometers (pm).
Formula
λC = h / (m c)
Electron: λC ≈ 2.426 pm
About Compton Wavelength Calculator
The Compton wavelength characterizes quantum behavior at short distances and appears in Compton scattering.
Common Questions
Is relativistic mass used?
No. Use the particle rest mass in kilograms.
How is this different from de Broglie wavelength?
Compton uses rest mass only; de Broglie depends on momentum.