The Entropy Calculator computes the change in entropy (ΔS) using the formula ΔS=q/T\Delta S = q / TΔS=q/T, where qqq is the heat exchanged and TTT is the absolute temperature. By entering any two of the three variables, the calculator determines the missing value. This tool is useful for physics and chemistry students, thermodynamics studies, and laboratory calculations to understand how heat transfer affects the disorder of a system.