Starting from the main equation for calculation of pipe reactor, in which there are differential, i.e. integral links between values of Ï„ (volumetric time), rA (reaction rate), XA (level of conversion of reactant) and CA (reactant concentration), their graphic dependence has been established using certain mathematical transformations. Basic theorems of differential geometry, i.e. differential and integral calculus were used to prove graphic constructions in this process. Using the previous, based on a known analytic dependence that has been shown graphically, two other characteristic dependencies have been determined by graphic construction. In that way, we obtained more information on the observed process in a relatively simpler way compared to the existing methods. For both of the suggested constructions, a special overview has been given for determining coefficients of proportionality, since they are crucial for practical application of the suggested method. Verification of the method has been performed on a practical example from the area of chemical reaction engineering, where volumetric time for the given output was determined by a graphic procedure. The obtained results were verified with two mathematical methods, with satisfactory accuracy.