Faraday's laws can be summarized by
where  is the molar mass of the substance (usually given in SI units of grams per mole) and  is the valency of the ions .
For Faraday's first law,  are constants; thus, the larger the value of , the larger  will be.
For Faraday's second law,  are constants; thus, the larger the value of  (equivalent weight), the larger  will be.
In the simple case of constant-current electrolysis, , leading to
and then to
where:
*  is the amount of substance ("number of moles") liberated: 
*  is the total time the constant current was applied.
For the case of an alloy whose constituents have different valencies, we have
where  represents the mass fraction of the -th element.
In the more complicated case of a variable electric current, the total charge  is the electric current  integrated over time :
Here  is the total electrolysis time.