Present study deals with the non-linear finite element analysis by the use of ANSYS 2022 software to analyse the compressive strength of different grades of concrete specimens after subjected to the different elevated temperatures and then cooled gradually. The experimental data was taken from research papers of the various researchers. About seventy cubic and cylinder specimens of different sizes were taken for analysis. First, the compressive strength of concrete specimens were calculated at ambient temperature and then these specimens were subjected to different temperatures i.e. (200, 350, 400, 500, 600, etc.) °C and cooled gradually before analysing. After finite element analysis by ANSYS 2022, results were compared with the experimental results of various research papers at ambient and different temperatures. It has been found that finite element analysis is fairly able to predict the compressive strength of concrete subjected to elevated temperatures and different grade of concrete shows different behaviour at different elevated temperatures.