de Broglie Wavelength Calculator
Compute λ = h/(mv) for a particle (alt units).
Input Data
Mass
kg
Velocity
m/s
Results
λ in nm.
0.727412nm
λ = h/(mv) in m.
7.2741244923×10⁻¹⁰ m
At a glance:λ = h/(m·v). Complements momentum and compton-wavelength.
Formula
λ = h / (m·v).
$$\lambda = \dfrac{h}{p} = \dfrac{h}{mv}$$$$h = 6.626 \times 10^{-34}\,\text{J·s}$$How to Use
- Enter mass and velocity.
- The tool returns the wavelength.
Case Studies
m=9.11e-31, v=1e6
λ ≈ 0.727 nm.
FAQ
Electron at 1 eV?
λ ≈ 1.23 nm.
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References
Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.