Hi Faiza,

Well as far as I know then the values olfor electrode potential of calomel electrode are as follows,

1. Ecal (saturated with KCl)= +0.242V

2. E°cal = +0.27

3. Ecal (1M KCl solution) = +0.283

These are some of the values given for a calomel electrode and it's potential.

I hope this information helps.

All the best.