It is very easy. You can do it yourself. For calculating horoscope you must have your complete and accurate birth date, time and place. You can manually calculate your birth horoscope with the help of ephemeris, table of houses and astrological tables. But it is a tedious job for most of the people because they are not accustomed to mathematical formulas and tables. Astrological software and applications are good short-cut. There are numerous software and online apps that compute horoscope (for free or against nominal charges). However, mere figure of horoscope does not include delineations and predictions.