⚛️ Debye Length Calculator
Find the Debye length — the distance over which mobile charge carriers screen out electric fields in a plasma or electrolyte.
K
×10¹⁸ m⁻³
What Is Debye Length?
The Debye length is the characteristic distance over which an electric field in a plasma or electrolyte is screened out by the surrounding mobile charges. It is a key parameter in plasma physics, electrochemistry, and semiconductor physics.
The Formula
λ_D = √(ε₀ k_B T / (n z² e²)), where ε₀ is the vacuum permittivity, k_B is the Boltzmann constant, T is temperature, n is the charge carrier density, z is the charge number, and e is the elementary charge.
This calculator is intended for general educational and planning purposes.
Last reviewed August 2026