basic

Standard Cell Potential from Half-Reaction Potentials Calculator

E°_cell = E°_cathode − E°_anode.

Calculates the standard cell potential E°_cell = E°_cathode − E°_anode from the standard reduction potentials of two half-reactions. Also predicts spontaneity (positive = spontaneous).

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

Inputs

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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°_cell = E°_cathode − E°_anode

In depth

Calculates the standard cell potential E°_cell = E°_cathode − E°_anode from the standard reduction potentials of two half-reactions. Also predicts spontaneity (positive = spontaneous).