In the Marvel universe, Miles Morales is often portrayed as an average-sized teenager. His exact height varies from adaptation to adaptation, but in general, it's consistent with that of a young man his age. In the comics, Miles is drawn as a typical teenager, while in the animated film "Spider-Man: Into the Spider-Verse", he appears slightly smaller than the adults and other versions of Spider-Man. This representation is intended to reflect his status as a young teenager, and his size can be adapted to suit the needs of the story in different adaptations, such as video games or animated series.