Astrological calculations involve determining the positions of celestial bodies, such as planets and stars, at specific times. These calculations are based on the principles of astronomy and are used to create horoscopes, which provide insights into personality traits and potential life events. To perform these calculations, astrologers use tools like ephemeris tables and software that track the movements of celestial bodies. The results are often represented in a natal chart, which maps the positions of the planets at the time of a person's birth, helping to interpret their astrological influences.