Assign Hit Dice; Hit Dice by Size
Source: Dungeon Master’s Guide p. 276. Available in the SRD and the Basic Rules (2014)
Hit Dice by Size
| Monster Size | Hit Die | Average HP per Die |
|---|---|---|
| Tiny | d4 | 2½ |
| Small | d6 | 3½ |
| Medium | d8 | 4½ |
| Large | d10 | 5½ |
| Huge | d12 | 6½ |
| Gargantuan | d20 | 10½ |
| ^hit-dice-by-size |