Creature Size on Squares and Hexes; Creature Size and Space

Source: Dungeon Master’s Guide p. 251

Creature Size and Space

SizeSpace: SquaresSpace: Hexes
Tiny4 per square4 per hex
Small1 square1 hex
Medium1 square1 hex
Large4 squares (2 by 2)3 hexes
Huge9 squares (3 by 3)7 hexes
Gargantuan16 squares (4 by 4) or more12 hexes or more
^creature-size-and-space