Toril is comparable in size to the planet Earth with an equatorial circumference of about 25,000 miles (40,000 kilometers). Its polar circumference is slightly smaller, at approximately 24,900 miles.
Toril consists of various continents and islands, including Faerûn, Kara-Tur, and Zakhara in the central super-continent and, throughout most of its history Anchorome, Maztica, and Katashaka in the western region of the world. There is also one large and very mysterious continent east of Kara-Tur called Osse whose nature and inhabitants are all but unknown.