Size Increases
A creature may become larger when its Hit Dice are increased
(the new size is noted parenthetically in the monster’s
Advancement entry).
A size increase affects any special ability the creature has
that is affected by size. Increased size also affects a
creature’s ability
scores, AC, attack bonuses, and damage values as indicated on
the tables below.
| Table: Changes to Statistics by Size |
| Old Size* |
New Size |
Str |
Dex |
Con |
Natural Armor |
AC/ Attack |
| Fine |
Diminutive |
Same |
–2 |
Same |
Same |
–4 |
| Diminutive |
Tiny |
+2 |
–2 |
Same |
Same |
–2 |
| Tiny |
Small |
+4 |
–2 |
Same |
Same |
–1 |
| Small |
Medium |
+4 |
–2 |
+2 |
Same |
–1 |
| Medium |
Large |
+8 |
–2 |
+4 |
+2 |
–1 |
| Large |
Huge |
+8 |
–2 |
+4 |
+3 |
–1 |
| Huge |
Gargantuan |
+8 |
Same |
+4 |
+4 |
–2 |
| Gargantuan |
Colossal |
+8 |
Same |
+4 |
+5 |
–4 |
| *Repeat the adjustment if the creature moves up
more than one size. |
| Table: Increased Damage By Size |
| Old Damage (Each)* |
New Damage |
| 1d2 |
1d3 |
| 1d3 |
1d4 |
| 1d4 |
1d6 |
| 1d6 |
1d8 |
| 1d8 |
2d6 |
| 1d10 |
2d8 |
| 2d6 |
3d6 |
| 2d8 |
3d8 |
| * Repeat the adjustment if the creature moves up
more than one size category. |
This material is Open Game Content, and
is licensed for public use under the terms of the Open Game License
v1.0a.