De Broglie Wavelength Calculator

Find the matter wavelength of a moving particle.

Mass

Velocity

Wavelength 0

Formula: λ = h ÷ (m · v)

Step-by-step with your numbers:

1. Values used:

2. Mass = 0

3. Velocity = 1,000,000

5. Wavelength = Mass x Velocity = 0 x 1,000,000 = 0

Did we solve your problem today?

Every moving particle has a wavelength — tiny for big objects, significant for electrons.

The math behind it

λ = Planck's constant ÷ (mass × velocity).

Electron at 10⁶ m/s → ~0.73 nm.

Why don't we see it?

For everyday masses the wavelength is unimaginably small.