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Damage conversion
Damage conversion is a mechanic that changes the damage type from a hit into another damage type. Damage conversions do not apply to damage over time.
Mechanics
Damage conversion is done before any increases, or multipliers are applied to damage guaranteeing that they are only applied once. However, converted damage is affected by modifiers that apply to both the original damage type it was converted from, and the new damage type that it was converted to.[1]
Damage conversion is used by modifiers on skills, passive skills, equipment, and monsters. It comes in two main forms:
- #% of [Damage Type] Converted to [Damage Type]
- #% of [Damage Type] Added as [Damage Type] or Gain #% of [Damage Type] as Extra [Damage Type]
The difference between these forms is the effect they have on the original damage. Converted to modifiers replace the original damage with the new damage, while added as preserves the original damage, adding the new damage to the total. These two modifiers do not interfere with one another in any way.
Conversion is applied on your character to your damage stats, which have minimum and maximum values. You can see that this happens because you can see that the min and max values of each type are already calculated on your skill, accounting for conversion.[2] For example, assuming that you convert Physical skill 50% to Cold and 50% to Lightning, there will be enough variance in damage ranges to alternate which damage type is higher, enabling the use of 
Trinity SupportTrinity SupportSupport
Icon: y
Level: (1-20)
Cost & Reservation Multiplier: 140%Requires Level 18Supports skills that hit enemies, causing them to gain bonuses while you have resonance of all three elements, and to grant resonance of elements other than the highest one in a hit. There is a maximum of 50 Resonance for each Element. Cannot support triggered skills, instant skills, orb skills, brands, skills which reserve mana, or skills used by totems, traps, or mines. Cannot modify the skills of minions.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Elemental DamageSupported Skills have 0.25% Chance to Freeze, Shock and IgniteSupported Skills convert 0.5% of Physical Damage to a random ElementSupported Skills deal (3-5)% more Elemental Damage per 5 of lowest Resonance
Supported Skills penetrate (10-20)% Elemental Resistances while each Resonance is at least 25
Hits with Supported Skills for which the highest Damage Type is Elemental cause you to gain 25 Resonance of other Elements per second for 2 seconds
Lose 5 Resonance per second of each Element you are not gainingThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
.
Converted to
For this type of modifier, the original damage is replaced with the converted damage. The amount of any given damage type that can be converted in this way cannot exceed 100%. If the combined value of all converted to modifiers for a given damage type is greater than 100%, the values are scaled so that the total is 100%.[3] Conversion from skill gems (both active and support skill gems) take priority over conversion from other sources (such as equipment), and is not scaled. The game does not distinguish between damage converted by passives and by gear; this may be of some importance when dealing with Avatar of Fire.[4]
Damage conversion only flows in one direction between types, possibly skipping types, but never going in reverse:[5]
- Physical → Lightning → Cold → Fire → Chaos
The reason is that conversion is an iterative process from one damage type to the next, so if it goes backwards there'll be an infinite loop.[6] Converted damage can be converted further itself.
- A player is wielding a bow that deals 100 Physical Damage,
- a Module Error: Item link: No results found for search parameter "Blackgleam". quiver that has 50% of Physical Damage converted to Fire Damage,
- and Module Error: Item link: No results found for search parameter "Hrimsorrow". gloves that have 50% of Physical Damage converted to Cold Damage.
- The player is using the skill
Lightning ArrowLightning ArrowAttack, AoE, Projectile, Lightning, Bow
Level: (1-20)
Cost: (7-11) Mana
Attack Damage: (130-154)% of base
Effectiveness of Added Damage: (130-154)%
Projectile Speed: 3260Requires Level 12Fires a charged arrow at the target, causing them to be struck by a bolt of lightning which damages nearby enemies.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal1% chance to Shock enemies1% increased Area of Effect1% of Physical Damage Converted to Lightning Damage1% chance to Hit an additional EnemyDeals (130-154)% of Base Attack Damage
50% of Physical Damage Converted to Lightning Damage
Hits up to 3 additional enemies near the target
(1-9) to (13-179) Added Lightning Damage
Shocks Enemies as though dealing (100-290)% more DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.
, which has 50% of Physical Damage converted to Lightning Damage
- The total in this is example is 150% of Physical Damage, and must be scaled. Since it comes from a skill gem, Lightning Arrow's modifier takes priority and is not scaled. The other two are scaled proportionally to convert the remaining 50% of physical damage.
- 50 * (50/100) = 25% Converted to Fire Damage by Blackgleam
- 50 * (50/100) = 25% Converted to Cold Damage by Hrimsorrow
- In summary, the resulting converted damage would be 50 Lightning Damage, 25 Fire Damage, and 25 Cold Damage, and 0 Physical Damage, a total of 100 Damage.
- The total in this is example is 150% of Physical Damage, and must be scaled. Since it comes from a skill gem, Lightning Arrow's modifier takes priority and is not scaled. The other two are scaled proportionally to convert the remaining 50% of physical damage.
Added as
This modifier does not replace the original damage, instead it takes a portion of the damage and adds it to the total as a different damage type.[7] Damage added in this way can exceed 100% of the source damage type, and does not need to be scaled.
- A player is wielding a bow that deals 100 Physical Damage, and using a Blackgleam quiver, Hrimsorrow gloves, and Lightning ArrowLightning ArrowAttack, AoE, Projectile, Lightning, Bow
Level: (1-20)
Cost: (7-11) Mana
Attack Damage: (130-154)% of base
Effectiveness of Added Damage: (130-154)%
Projectile Speed: 3260Requires Level 12Fires a charged arrow at the target, causing them to be struck by a bolt of lightning which damages nearby enemies.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal1% chance to Shock enemies1% increased Area of Effect1% of Physical Damage Converted to Lightning Damage1% chance to Hit an additional EnemyDeals (130-154)% of Base Attack Damage
50% of Physical Damage Converted to Lightning Damage
Hits up to 3 additional enemies near the target
(1-9) to (13-179) Added Lightning Damage
Shocks Enemies as though dealing (100-290)% more DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket., as in the above example. - The Lightning ArrowLightning ArrowAttack, AoE, Projectile, Lightning, Bow
Level: (1-20)
Cost: (7-11) Mana
Attack Damage: (130-154)% of base
Effectiveness of Added Damage: (130-154)%
Projectile Speed: 3260Requires Level 12Fires a charged arrow at the target, causing them to be struck by a bolt of lightning which damages nearby enemies.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal1% chance to Shock enemies1% increased Area of Effect1% of Physical Damage Converted to Lightning Damage1% chance to Hit an additional EnemyDeals (130-154)% of Base Attack Damage
50% of Physical Damage Converted to Lightning Damage
Hits up to 3 additional enemies near the target
(1-9) to (13-179) Added Lightning Damage
Shocks Enemies as though dealing (100-290)% more DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. skill is supported by a level 1 
Added Fire Damage SupportAdded Fire Damage SupportFire, Physical, Support
Icon: F
Level: (1-20)
Cost & Reservation Multiplier: 120%Requires Level 8Supports any skill that hits enemies.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Fire DamageSupported Skills deal 1% reduced Fire Damage
Supported Skills have +1% to Fire Damage over Time MultiplierSupported Skills have 1% of Physical Damage Converted to Fire DamageSupported Skills gain (25-44)% of Physical Damage as Extra Fire DamageThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
gem, which has 25% of Physical Damage Added as Fire Damage.
- The result of the Converted to modifiers is the same as in the above example, the amounts are scaled to a total of 100% as normal. The Added Fire Damage SupportAdded Fire Damage SupportFire, Physical, Support
Icon: F
Level: (1-20)
Cost & Reservation Multiplier: 120%Requires Level 8Supports any skill that hits enemies.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased Fire DamageSupported Skills deal 1% reduced Fire Damage
Supported Skills have +1% to Fire Damage over Time MultiplierSupported Skills have 1% of Physical Damage Converted to Fire DamageSupported Skills gain (25-44)% of Physical Damage as Extra Fire DamageThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket. gem adds an additional 25% of the original Physical Damage as Fire Damage - In summary, the resulting converted damage would be 50 Lightning Damage, 50 Fire Damage, and 25 Cold Damage, and 0 Physical Damage, a total of 125 Damage.
- The result of the Converted to modifiers is the same as in the above example, the amounts are scaled to a total of 100% as normal. The
Sources
Skills
Converted to
| Skill gem |  |  |  |  |
|---|---|---|---|---|
 Caustic ArrowCaustic ArrowAttack, Projectile, AoE, Duration, Chaos, BowLevel: (1-20) Cost: (6-10) Mana Attack Damage: (55-64)% of base Effectiveness of Added Damage: (55-64)% Projectile Speed: 3260 Radius: 20Fires an arrow which deals chaos damage in an area on impact, and spreads caustic ground. Enemies standing on the caustic ground take chaos damage over time.Per 1% Quality:1Superior2Anomalous3Divergent0.5% increased Area of Effect1% chance to inflict Withered for 2 seconds on Hit1% of Physical Damage Converted to Chaos DamageDeals (55-64.4)% of Base Attack Damage Base duration is 2 seconds Deals (8.8-1927.1) Base Chaos Damage per second 60% of Physical Damage Converted to Chaos Damage Modifiers to Projectile Damage apply to this Skill's Damage Over Time effect +(0-6) to radiusPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.   |  | | | 1 |
Added as
| Skill gem | L | | | | |
|---|
Items
Converted to
Unique items which convert damage include:
Converted to lightning
| Item | | Phys % |
|---|
Additionally, Module Error: Item link: No results found for search parameter "Watcher's Eye". has a chance to grant (25-40)% of Physical Damage Converted to Lightning Damage while affected by Wrath.
Converted to cold
| Item | | Phys % | Light % |
|---|
Additionally, Module Error: Item link: No results found for search parameter "Watcher's Eye". has a chance to grant (25-40)% of Physical Damage Converted to Cold Damage while affected by Hatred.
Converted to fire
| Item | | Phys % | Light % | Cold % |
|---|
Additionally, Module Error: Item link: No results found for search parameter "Xoph's Blood". provides the keystone Avatar of Fire, which converts 50% of each physical, lightning, and cold to fire. Module Error: Item link: No results found for search parameter "Skin of the Lords". also has a chance to grant Avatar of Fire. Module Error: Item link: No results found for search parameter "Watcher's Eye". has a chance to grant (25-40)% of Physical Damage Converted to Fire Damage while affected by Anger.
Converted to chaos
| Item | | Phys % | Light % | Cold % | Fire % |
|---|
Added as
Added as lightning
| Item | | Phys % |
|---|
Additionally, Module Error: Item link: No results found for search parameter "Watcher's Eye". has a chance to grant Gain (15-25)% of Physical Damage as Extra Lightning Damage while affected by Wrath.
Added as cold
| Item | | Phys % | Light % |
|---|
Added as fire
| Item | | Phys % | Light % | Cold % |
|---|
Additionally, Module Error: Item link: No results found for search parameter "Watcher's Eye". has a chance to grant Gain (15-25)% of Physical Damage as Extra Fire Damage while affected by Anger.
Added as chaos
Please note that there are also items which grant the Unholy Might buff, which grants 30% of physical damage as extra chaos damage, but those are not listed here.
| Item | | Phys % | Light % | Cold % | Fire % |
|---|
A notable interaction of the mods #% of Elemental Damage as Extra Chaos Damage and #% of Non-Chaos Damage as Extra Chaos Damage is that they apply for each valid damage type rather than a total of the valid damage types.
For example, the mod #% of Elemental Damage as Extra Chaos Damage would instead translate to:
- #% of Lightning Damage as Extra Chaos Damage
- #% of Cold Damage as Extra Chaos Damage
- #% of Fire Damage as Extra Chaos Damage
And the mod #% of Non-Chaos Damage as Extra Chaos Damage would instead translate to:
- #% of Physical Damage as Extra Chaos Damage
- #% of Lightning Damage as Extra Chaos Damage
- #% of Cold Damage as Extra Chaos Damage
- #% of Fire Damage as Extra Chaos Damage
- A player is wielding a bow that deals 100 Physical Damage,
- a Module Error: Item link: No results found for search parameter "Blackgleam". quiver that has 50% of Physical Damage converted to Fire Damage,
- and Module Error: Item link: No results found for search parameter "Hrimsorrow". gloves that have 50% of Physical Damage converted to Cold Damage,
- and finally, a rare amulet with the mod 10% of Non-Chaos Damage as Extra Chaos Damage.
- For the purposes of this example, let's assume the player has no other damage modifiers.
The player has 100 physical damage, 50 of which is converted to fire from Module Error: Item link: No results found for search parameter "Blackgleam". and 50 of which is converted to cold from Module Error: Item link: No results found for search parameter "Hrimsorrow"..
The player has 20 chaos damage:
- 10 from 10% of Non-Chaos Damage as Extra Chaos Damage applying to the 100 base physical damage.
- 5 from 10% of Non-Chaos Damage as Extra Chaos Damage applying to the 50 converted cold damage.
- 5 from 10% of Non-Chaos Damage as Extra Chaos Damage applying to the 50 converted fire damage.
Therefore in total, the player has:
- 50 Fire + 50 Cold + 20 Chaos = 120 total damage.
Corruption
Previously, corrupting a quiver or scepter had a chance to replace its implicit modifier with one of the following (now only available in Standard league):
- (10 to 20)% of Physical Damage Converted to Cold Damage
- (10 to 20)% of Physical Damage Converted to Lightning Damage
- (10 to 20)% of Physical Damage Converted to Fire Damage
Essence
Some Essence grant following modifiers:
- Module Error: Item link: No results found for search parameter "Essence of Hysteria".: Gain 10% of Physical Damage as Extra Fire Damage to Quiver or Ring
- Module Error: Item link: No results found for search parameter "Essence of Insanity".: Socketed Gems gain 50% of Physical Damage as extra Lightning Damage to Helmet
Shaped and Elder items
Shaper and Elder items have a chance to grant following modifiers:
- Elder weapons: (10–25)% of Physical Damage Converted to Chaos Damage
- Elder amulets: Gain (7–13)% of Non-Chaos Damage as Extra Chaos Damage Amulets
- Elder amulets: Gain (10–20)% of Physical Damage as Extra Fire Damage
- Shaper amulets: Gain (10–20)% of Physical Damage as Extra Cold Damage
- Shaper amulets: Gain (10––20)% of Physical Damage as Extra Lightning Damage
- Shaper weapons: Gain (15–40)% of Physical Damage as Extra Fire Damage
- Shaper weapons: Gain (15–40)% of Physical Damage as Extra Cold Damage
- Shaper quivers: Gain (5–15)% of Physical Damage as Extra Cold Damage
- Shaper weapons: Gain (15–40)% of Physical Damage as Extra Lightning Damage
- Shaper weapons: Gain (10–20)% of Elemental Damage as Extra Chaos Damage
- Shaper scepters: Gain (15–30)% of Physical Damage as Extra Damage of a random Element
Crafting Bench
Through use of the Crafting Bench, it is possible to apply the following modifiers:
- (20-25)% of Physical Damage Converted to Fire Damage to Gloves
- (20-25)% of Physical Damage Converted to Cold Damage to Gloves
- (20-25)% of Physical Damage Converted to Lightning Damage to Gloves
The Temple of Atzoatl
In The Temple of Atzoatl it is possible to get Gloves with the following signature modifiers:
- Module Error: No results found.
- Module Error: No results found.
- Module Error: No results found.
Passive skills
The following passives convert damage or add damage as another type
Conversion
Base passives
No results found for the given query.
Ascendancy passives
No results found for the given query.
Keystones
No results found for the given query.
Added damage
Base passives
No results found for the given query.
Ascendancy passives
No results found for the given query.
Example calculation
Imagine a player wielding a sword that deals 100 Physical Damage, and performs an attack with the following modifiers:
- 50% of Physical Damage converted to Cold Damage from a skill gem
- 30% of Physical Damage converted to Fire Damage from gear
- 30% of Physical Damage converted to Lightning Damage from gear
- 30% of Physical Damage Added as Fire Damage from a support gem
- 15% of Physical Damage Added as Cold Damage from a support gem
- 50% of Cold Damage converted to Fire Damage from a support gem
- Adds 30 Cold Damage from a support gem
- 30% more Physical Damage from a support gem
- 70% more Weapon Elemental Damage from a support gem
- 80% increased Physical Damage with Swords from passive skills
- 30% increased Melee Physical Damage from Strength and passive skills
- 20% increased Fire Damage from passive skills
- 15% increased Cold Damage from passive skills
First off, there is more than 100% of physical damage conversion, so the values are scaled to total 100%. As a result, 50% of physical damage will become Cold Damage, 25% will become Fire Damage, and 25% will become Lightning Damage.
The Cold Damage
The amount of Cold damage that has been converted from Physical is 65 (50 Converted to, 15 Added as). 50% of the Cold Damage is Converted to Fire, leaving us with 32.5 remaining Cold Damage. This damage is affected by all Cold and Physical Damage modifiers:
- 80% + 30% + 15% = 125% increased damage
- 30% more damage
- 70% more damage
- 32.5 * (1 + 0.8 + 0.3 + 0.15) * 1.3 * 1.7 = 161.6 Cold Damage
There is also 30 Cold Damage added by a support gem which was not the result of a conversion. 50% of this is Converted to Fire, and the remaining 15 is affected by all Cold Damage modifiers:
The Lightning Damage
There is 25 Lightning Damage that was converted from Physical. This damage is affected by all Lightning and Physical Damage modifiers:
- 80 + 30 = 110% increased damage
- 30% more damage
- 70% more damage
- 25 * (1 + 0.8 + 0.3) * 1.3 * 1.7 = 116.0 Lightning Damage
The Fire Damage
There is 55 Fire Damage that was converted from Physical. This damage is affected by all Fire and Physical Damage modifiers:
- 80 + 30 + 20 = 130% increased damage
- 30% more damage
- 70% more damage
- 55 * (1 + 0.8 + 0.3 + 0.2) * 1.3 * 1.7 = 279.6 Fire Damage
There is also 32.5 Fire Damage that was converted from Cold that was converted from Physical. This damage is affected by all Fire, Cold, and Physical Damage modifiers:
- 80 + 30 + 20 + 15 = 145% increased damage
- 30% more damage
- 70% more damage
- 32.5 * (1 + 0.8 + 0.3 + 0.2 + 0.15) * 1.3 * 1.7 = 176.0 Fire Damage
There is also 15 Fire Damage that was converted from Cold. This damage is affected by all Fire and Cold Damage modifiers:
The Final Damage
In summary we have
- 29.3 Cold Damage
- 161.6 Cold Damage (from Physical)
- 116.0 Lightning Damage (from Physical)
- 279.6 Fire Damage (from Physical)
- 176.0 Fire Damage (from Cold, from Physical)
- 34.4 Fire Damage (from Cold)
For a total of 190.9 Cold, 490.0 Fire, and 116.0 Lightning Damage, a grand total of 796.9 damage.
References
- ↑ Mark_GGG (June 22, 2016). "Mechanical Questions Thread". Official Path of Exile Forums. Retrieved June 23, 2016.
- ↑ https://old.reddit.com/r/pathofexile/comments/cyb7qq/is_there_an_gem_combo_that_allows_you_to_have_the/eyscdlg
- ↑ Mark_GGG (February 21, 2013). "Over 100% Damage Conversion". Official Path of Exile Forums. Retrieved February 18, 2016.
- ↑ Mark_GGG (October 17, 2013). "GGG, whats the order of precedence for damage conversion with AoF?". Official Path of Exile Forums. Retrieved January 20, 2017.
- ↑ Mark_GGG (February 18, 2015). "Elemental To Physical Conversion". Official Path of Exile Forums. Retrieved March 18, 2016.
- ↑ Dan_GGG (January 12, 2016). "Elemental Damage Taken As Physical". Official Path of Exile Forums. Retrieved January 25, 2016.
- ↑ Mark_GGG (November 5, 2013). "ice bite is broken.". Official Path of Exile Forums. Retrieved March 2, 2016.