Smaug's actual size is unknown as it is never explicitly mentioned in The Hobbit, and illustrations by Tolkien, Alan Lee, and John Howe greatly vary in size in each portrait while the size of the Front Gate of the Dwarve… See more

Being a fully-grown dragon, Smaug was both massive and powerful, possessing physical strength capable of crushing stone with ease, as seen by his attack on the Lonely Mountain. He was able to fly thanks to his large … See more

Smaug is described as a red-golden dragon, with bat-like wings and a huge tail. His jaws and nostrils were always emitting smoke, but the fires inside him burned low when he was at rest. His red-golden scales were toug… See more

It is possible, but not verified by Tolkien, that Smaug was born in the Third Age and was from Withered Heath, like other dragons in those days, for several reasons: 1. Gandalf noted that Smaug was not fully grown at th… See more