Effective HP Calculator for Path of Exile 2
Enter your pools and defences from the character sheet and see how big a hit of each type you can survive, per landed hit and on average with evasion and block. Your inputs stay in the link.
How to read it
"Per landed hit" is the raw damage of one hit that empties your life and energy shield after armour or resistance. Armour shrinks against bigger hits, so the physical number is solved for the exact killing hit; small hits are mitigated much more than that figure suggests. Resistances are capped at your maximum before they apply, and negative values make hits bigger.
"Average" spreads evasion and block over many attacks: it is the raw damage per attack an enemy must swing to kill you on average. Use it to compare builds, not to judge a one-shot. Formula, constants and their verification status are on the how it's calculated page; to see what your own hits do, use the hit & crit calculator.
FAQ
What is effective HP?
The size of a single raw hit of a given damage type that would take you from full to zero, after your mitigation. Armour depends on the hit size, so the physical figure is solved for the exact hit that kills you rather than for an arbitrary hit.
Why is "average EHP" higher than "per landed hit"?
Evasion and block do not reduce damage; they make some attacks miss or be blocked. Over many attacks the expected damage you take is (1 − evade) × (1 − block) of the raw damage, so the average figure divides by that share. One unlucky hit still deals the full landed-hit amount.
What enemy accuracy should I enter?
Use the accuracy of monsters at the map level you run; the formula page lists typical values by level. Leave it at 0 to ignore evasion and see pure per-hit numbers.
How does chaos damage interact with energy shield?
In Path of Exile 2 chaos damage does not bypass energy shield as it did in the first game; it removes twice as much energy shield per point of damage. The calculator therefore counts half of your energy shield in the chaos pool.
Does evasion work against spells?
Yes. Since version 0.3.0 player evasion applies to all hits, attacks and spells alike, except boss skills marked with a red flash. Block also works against all hits and fully negates the damage of a blocked hit.
Path of Exile 2 is a trademark of Grinding Gear Games. This site is an independent fan-made tool and is not affiliated with, endorsed by or sponsored by Grinding Gear Games. Game names are used only to describe what the calculators are for. No game art, icons or logos are used. Formulas are compiled from public sources and may lag behind patches — each tool shows the game version it was checked against.