This page contains the information of dragon species and their wingspan, this data was collected with evidence, most of which was said in the TV series Dragons.
- Monstrous Nightmare: 20.7264 metres
- Thunderdrum: 14.6 m (riders of berk)
- Gronkle: 5.4864m
- Scauldron: 24.6204m
- Stormcutter: 20.6m
- Night Fury: 14.6304 (adult : 19 m)
- Hideous Zippleback: 11.58254m