Self Inductance is denoted by the symbol "L" and its unit is Henry. It can be explained as the ratio of self-induced emf to the rate of change of current in the coil. Self inductance of coil formula requires values of induced electromotive force and rate of change of current for performing the calculation. You can find the self-inductance by dividing the Induced Electromotive Force with the rate of change of current as given in the self inductance of coil formula.
Self inductance is based on the shape and number of turns in the circuit. Self-inductance won't stop the change of current but it changes of current flowing through it. Such an inductance can be found using self inductance of coil formula.