Hit Points
Monsters › Parts of a Stat Block · SRD 5.2.1 p. 255
A monster’s Hit Points are presented as a number followed by parentheses, where the monster’s Hit Point Dice are provided, along with any contribution from its Constitution. Either use the number for the monster’s Hit Points or roll the die expression in parentheses to determine the monster’s Hit Points randomly; don’t use both.
A monster’s size typically determines the die used to calculate its Hit Points, as shown in the Hit Dice by Size table. A monster’s Constitution modifier is multiplied by the number of Hit Dice it possesses, and the result is added to its Hit Points. For example, if a monster has a Constitution of 12 (+1 modifier) and 2d8 Hit Dice, it has 2d8 + 2 Hit Points (average 11).
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 |
For more on Hit Points, see “Playing the Game*.”*