Cell EMF Calculator

Cell EMF calculator is used for providing the value of electromotive force (EMF) for galvanic (voltaic) cells with given electrodes potential.

EMF is known as an electromotive force. It is a maximum potential difference between two electrodes of voltaic or galvanic cell. It also defined as electric pressure or force which generates the current in a circuit. The EMF unit is volt [V].


Formula of Cell EMF Calculator

The formula to calculate the area of a parallelogram is as follows

EMFcell [V] = Ecathode [V] - Eanode [V]


A cathode = reducing electrode that releases the electron to the external circuit that's potential is in volts[V].

A node = oxidizing electrode that accepts the electron from an external circuit that's potential is in volts[V]

EMFcell = electromotive force.


If you want to calculate buffer capacity, you can use our Buffer Capacity Calculator.


If we have a potential of anode is 8.5 volts and the potential of cathode is 12.5 volts then find the cell emf?

Given data

potential of anode = 8.5 volts
potential of cathode = 12.5 volts

To Find

EMFcell =?


By using the formula listed below, you can find the area of a parallelogram.

EMFcell [V] = Ecathode [V] - Eanode [V]

Putting values in the formula:

EMFcell = 8.5 - 12.5
EMFcell = 4 volts

How to use the Cell EMF Calculator?

The steps to use the cell EMF calculator are as follows:

Step 1: Enter the value of the anode in the first required input.

Step 2: Enter the value of the cathode in the second input needed.

Step 3: The calculator will automatically display an answer on the screen.

Calculator use

To find the Cell EMF, you can use our Cell EMF Calculator. Just enter the required values, and the answer will be shown on the screen