The main objective of “Design and FPGA Implementation of an Efficient Squarer Circuit Using Reversible Logic” is to develop and implement a squarer circuit that computes the square of a number using principles of reversible logic while optimizing key hardware metrics such as quantum cost, power consumption, and circuit delay. By leveraging reversible logic gates and FPGA targeting, the paper aims to demonstrate how reversible computing can reduce energy dissipation — a significant advantage for low-power digital designs — and validate the design’s functional correctness and efficiency through FPGA implementation and performance analysis.