Cell Potential Calculator - Calculator Suite

Cathode Half-Reaction:

Custom Cathode E° (V):

Anode Half-Reaction:

Custom Anode E° (V):

Standard Cell Potential E°cell (V):

Temperature (K):

Number of electrons (n):

Reaction Quotient (Q):

Metal Ion:

Concentration at Cathode (M):

Concentration at Anode (M):

Temperature (K):

Standard Cell Potential (V):

Number of electrons:

Temperature (K):

E°cell = E°cathode - E°anode

Ecell = E°cell - (RT/nF)ln(Q)

At 25°C: Ecell = E°cell - (0.0257/n)ln(Q)

O₂/H₂O
+1.23 V

Ag⁺/Ag
+0.80 V

Cu²⁺/Cu
+0.34 V

H⁺/H₂
0.00 V

Pb²⁺/Pb
-0.13 V

Zn²⁺/Zn
-0.76 V

R = 8.314 J/(mol·K)

F = 96,485 C/mol (Faraday constant)

RT/F at 25°C = 0.0257 V

⚡ Cell Potential Calculator