PF2e Strike Calculator
Calculate hit probability, critical hit chance, and expected damage per strike in Pathfinder 2e. Accounts for Multiple Attack Penalty (MAP) across 1–3 strikes per round, with normal and agile weapon options.
Attack Parameters
+10
20
10
Strike 1+10 to hit
Avg dmg
6.0
5%Critical Hit
50%Hit
40%Miss
5%Crit Fail
Strike 2+5 to hit (MAP -5)
Avg dmg
3.5
5%Critical Hit
25%Hit
45%Miss
25%Crit Fail
Strike 3+0 to hit (MAP -10)
Avg dmg
1.0
5%Critical Hit
0%Hit
45%Miss
50%Crit Fail
Total Expected Damage (3 Strikes)
Sum of expected damage if all strikes are used
10.5
PF2e Strike Degree Rules
Critical Hit: Roll result ≥ AC + 10 (or natural 20 that hits) → double damage
Hit: Roll result ≥ AC → normal damage
Miss: Roll result below AC → no damage
Critical Failure: Roll result ≤ AC − 10 (or natural 1 that misses) → no damage
Natural 20 upgrades result by one degree; natural 1 downgrades by one degree.
MAP: Multiple Attack Penalty applies to 2nd and 3rd strikes in a round.