Creature Size

A creature belongs to a size category, which determines the width of the square space the creature occupies on a map, as shown on the Creature Size and Space table. That table lists the sizes from smallest (Tiny) to largest (Gargantuan). A creature's space is the area that it effectively controls in combat and the area it needs to fight effectively.
A character's size is determined by species, and a monster's size is specified in the monster's stat block.
Creature Size and Space | | Size
| Space (Feet)
| Space (Squares)

| Tiny
| 2½ by 2½ feet
| 4 per square

| Small
| 5 by 5 feet
| 1 square

| Medium
| 5 by 5 feet
| 1 square

| Large
| 10 by 10 feet
| 4 squares (2 by 2)

| Huge
| 15 by 15 feet
| 9 squares (3 by 3)

| Gargantuan
| 20 by 20 feet
| 16 squares (4 by 4)

Squeezing into a Smaller Space