In the present work, Yttria Stabilized Zirconia (YSZ) was synthesized rapidly through microwave combustion. Subsequently, the synthesized YSZ was conventional sintered at different temperatures, ranging from 1200 to 1400 ºC at 50 °C intervals. X-ray diffraction results confirmed that the synthesized YSZ belongs to the cubic phase. Further, the investigation of microstructures of sintered YSZ using SEM analysis confirmed the temperature dependent grain growth behavior. Among the sintered YSZ, the sample sintered at 1400 ºC was found to possess the highest median particle size (4.77 µm), as well as average grain size (4.15 µm) with increased relative density (92%). Impedance studies for the YSZ samples sintered at different temperatures revealed that the conductivity is directly proportional to the relative density and operating temperature. Accordingly, the sample sintered at 1400 °C showed the highest ionic conductivity of 5.68 × 10–2 S/cm at 700 °C. The data resulted from various studies, suggesting that the YSZ synthesized through microwave assisted approach yields conductivity and dielectric behavior similar to conventional methods. Hence, this approach could also be extended to the synthesis of various electrolyte materials (E.g., LSDF, LSCO, and BSCF) that can be used in solid oxide fuel cells at a low cost and in a short duration.