Abstract <p>We propose a variant for calculating an atmospheric plasma torch with the gas stabilization and a fixed arc length. In the calculation, predominantly criterion dependences have been used. The proposed variant for calculating the plasma torch parameters is characterized by a more meticulous calculation of cooling of plasma torch components and a slightly modified algorithm for calculating basic parameters. The calculation technique makes it possible to determine the main structural dimensions of the plasma torch with a chosen structure and the main working parameters of the process occurring in it or perform the checking calculation of the plasma torch with known parameters. Based on the resulting sizes and characteristics of processes, more detailed calculations can be performed for separate elements of the structure or processes that are not included in the proposed methodology.</p>