Penetration Calculator
Switch on what your group and your build bring, and see your total penetration against the target's armor. Every value is the Update 52 number at CP160 and gold quality. Hover a name for its tooltip.
Update 52 (PTS) version
This page is the Update 52 version of the Penetration Calculator. Update 52 is on the PTS until January 19, 2027, so numbers can still move. Skill and set tooltips still show the live Update 51 text; hover one that changes to see what's new. For what works in game today, switch to Update 51 in the version picker (top right, or in the menu on phones). The full list is in the Update 52 patch notes.
- No penetration source, armor value or cap changes in the Update 52 patch notes, so every number here is the same as in Update 51.
From your group
Debuffs your tank or group put on the target, and Exploitation.
+5,948
+2,974
Sorcerer in the group
0
Tank's weapon enchant
0
Up to 6000, equal to the wearer's Weapon Damage
0
0
Scales with the tank's resistance: enter their tooltip value
0
Armor you strip
Your own skills and sets that lower the target's Armor.
Arcanist
0
Sorcerer
0
0
Your penetration
Champion Points, passives, gear and mundus.
- +700
- 0
0- 0
0
0
0
2 perfected items, e.g. a two-hander
0
Necromancer, while a Grave Lord ability is active
0
Arcanist
0
0
Weapon trait, gold
0
Wood Elf
0
Mundus stone
0
- Penetration
- 9,622
- Target armor
- 18,200
- Armor left
- 8,578
How it works
Penetration and armor reduction both lower the armor your damage has to get through, so they add together. Every 660 armor left on the target blocks 1% of your damage. Once your total matches the target’s armor you deal full damage, and anything past that is wasted: swap it for damage.
A Major and a Minor Breach stack, but two sources of the same Breach don’t. Group debuffs and Exploitation help everyone, so count them for whoever is in your group right now.
Where the numbers come from