Base Attack Bonus
Base Attack Bonus (BAB) is your class attack bonus without any modifiers from Strength, Dexterity, feats, skills, weapon enhancements, spells or anything else.
There are three Class BAB increases:
- Main Classes:
- Second Classes:
- Third Classes:
| Level | Main Classes | Second Classes | Third Classes |
|---|---|---|---|
| 1 | +1 | +0 | +0 |
| 2 | +2 | +1 | +1 |
| 3 | +3 | +2 | +1 |
| 4 | +4 | +3 | +2 |
| 5 | +5 | +3 | +2 |
| 6 | +6/+1 | +4 | +3 |
| 7 | +7/+2 | +5 | +3 |
| 8 | +8/+3 | +6/+1 | +4 |
| 9 | +9/+4 | +6/+1 | +4 |
| 10 | +10/+5 | +7/+2 | +5 |
| 11 | +11/+6/+1 | +8/+3 | +5 |
| 12 | +12/+7/+2 | +9/+4 | +6/+1 |
| 13 | +13/+8/+3 | +9/+4 | +6/+1 |
| 14 | +14/+9/+4 | +10/+5 | +7/+2 |
| 15 | +15/+10/+5 | +11/+6/+1 | +7/+2 |
| 16 | +16/+11/+6/+1 | +12/+7/+2 | +8/+3 |
| 17 | +17/+12/+7/+2 | +12/+7/+2 | +8/+3 |
| 18 | +18/+13/+8/+3 | +13/+8/+3 | +9/+4 |
| 19 | +19/+14/+9/+4 | +14/+9/+4 | +9/+4 |
| 20 | +20/+15/+10/+5 | +15/+10/+5 | +10/+5 |
*Monks have a special Unarmed Base Attack Bonus when fighting unarmed or with a kama.
BAB and Multiclass Characters
The BAB of multiclass characters is calculated by adding the BAB of their individual classes. For example, a level 6 Barbarian / level 4 Rogue adds 6 BAB from 6 Barbarian levels with 3 BAB from 4 Rogue levels to give +9 total BAB.
BAB and Epic Characters
Once they reach epic levels, all characters have the same rate of BAB progression, regardless of their class. All epic characters' BAB increases by one every two levels starting at level 21. These epic BAB increases do not add extra attacks.
Notes:
- Generally speaking, if maximizing BAB on a character, it is better to take the warrior type classes that use the best BAB progression pre-epic. This yields the highest BAB and most number of attacks. For example, a 20 Fighter/20 Cleric character that takes 20 Fighter pre-epic will have 30 BAB and four attacks whereas if the same character took 20 Cleric pre-epic he'll have only 25 BAB and three attacks.
