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de Broglie Wavelength Calculator
Find the wavelength linked to a moving particle, or the momentum that matches a given de Broglie wavelength of a particle.
λ = h ÷ p
Every moving particle has a wavelength set by Planck's constant divided by its momentum, mass times velocity.
Wavelength
… m
The calculation runs entirely in your browser, no data leaves your device. Change any number and the answer updates instantly.