Abstract <p>A method is proposed for calculating an atmospheric plasma torch with gas stabilization. The calculation mainly uses criterion dependencies collected from known sources. These dependencies facilitate the determination of the primary characteristics of the plasma torch to be designed with a reasonable degree of accuracy and ease. A series of calculations determines the geometric dimensions of the plasma torch, working gas consumption, arc parameters (current and voltage), gas dynamic characteristics of the flow, electrode life, heat fluxes to structural elements, thermal stress of structural elements, and the energy (thermal) efficiency of the plasma torch. The cooling system of the plasma torch is calculated, and the costs required to cool its components are determined. The calculation results can be used to design a plasma torch.</p>