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Nernst Equation Electrode Potential Calculator

E = E° − (RT/nF)·ln(Q) — cell potential under non-standard conditions.

Calculates the actual electrode potential using the Nernst equation from standard reduction potential, temperature, number of electrons, and reaction quotient Q.

Dr. Helena Ortiz By Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

E = E° − (0.02569/n) × ln(Q) at 298 K; or (RT/nF) × ln(Q)

In depth

Calculates the actual electrode potential using the Nernst equation from standard reduction potential, temperature, number of electrons, and reaction quotient Q.