How large is Toril/Faerun/the Heartlands?
Let’s get our terminology straight first. Toril (Abeir-Toril) is the planet the Realms are found on. It’s roughly Earth-sized, according to the Forgotten Realms Campaign Setting. Faerun is the continent on which most Realms adventures take place. It stretches from Waterdeep and the Sword Coast in the west to the edge of the Hordelands in the east. The map in the old Grey Box clearly shows that Faerun is larger than North America by quite a bit. A quick calculation using the FR ATLAS reveals that Faerun has an area of ~ 14 million square miles. The areas of North America, Africa, and Asia are 9, 12, and 17 million square miles, respectively. The Heartlands (3.5 million square miles) are the central portion of Faerun, centered around Cormyr, the Dales, and the northern Sea of Fallen Stars. They cover roughly the same area as the United States (3.6 million square miles).
