An interval-simplex method of transforming kinetic equations of various degrees of complexity into a form convenient for practical engineering calculations to determine the parameters included in these equations is considered. This method allows to transform kinetic equations into a dimensionless form using simplex similarity. Representations of the interval-simplex method for transformation of equations describing regularities of kinetics of heterogeneous and homogeneous chemical processes of dissolution, leaching, as well as complex autoclave processes are considered.