# Size *Source: Player's Handbook (2024) p. 374. Available in the <span title='Systems Reference Document (5.2)'>SRD</span> and the Free Rules (2024)* A creature or an object belongs to a size category: Tiny, Small, Medium, Large, Huge, or Gargantuan. A creature's size determines how much space the creature occupies in combat. An object's size affects its [Hit Points](Mechanics/CLI/rules/variant-rules/hit-points-xphb.md).