On some conclusions from the relations of Planck quantities

Aim. Search for a variant of the LT system of units that is maximally consistent with the international SI and the subsystems of the CGS system of units. Methodology. The analysis of the ratios of physical quantities in the international SI, CGS subsystems and Planck LT systems of units is carried out. A method is proposed for determining the values of physical quantities according to the criterion of the maximum degree of consistency between the recommended CODATE values of constants for defining coupling equations. Results. Conditionally accurate values of the Planck length are obtained ℓ p = 1.616255272206877 ∙ 10 -35 ∙ 𝑚, the fine structure constant 𝛼 = 7.297352564390205 ∙ 10 -3 , and a number of other physical constants were obtained. A variant of the Planck LT system of units is proposed and the conversion coefficients between the electromagnetic quantities of the analyzed systems of units are clarified. Research implications . It consists in the possibility of using the PLT system of units and conditionally accurate values of a number of physical constants for computational methods and mathematical models of physical processes in various fields of science and technology.