Health regeneration

 Health regeneration (also known as HP5) is a stat similar to mana regeneration which determines the amount of health a champion regenerates over a five-second period. This happens in half-second intervals. Health regeneration is considered to be a form of healing for the purposes of healing increases or decreases, and for the sake of the "Healing Done" stat at the end of game screen.

Each champion starts with a certain base rate of health regeneration, which increases by a small amount at each level-up.

Health regeneration can be further increased by a variety of items, abilities, runes and neutral buffs. Health regeneration  stacks additively, and each bonus point acquired directly affects its statistic. This is true whether the bonus is a flat value or percentage-based.

Gold Value ​​​

• Flat health regeneration has a gold value of 36 per point.
• Percentage base health regeneration has a gold value of 3 per point.
• Health restored by potion has a gold value of 0.233 per point.

Restoring Health

Health can also be restored through others means than health regeneration: healing, life steal, and spell vamp.

Increasing health regeneration

Items

Item	Cost	Amount	Availability
Adaptive Helm Adaptive Helm	2800	100 %	All maps
Bulwark of the Mountain Bulwark of the Mountain	400	100 %	Summoner's Rift
Crystalline Bracer Crystalline Bracer	650	50 %	All maps
Doran's Shield Doran's Shield	450	6	Summoner's Rift
Guardian's Horn Guardian's Horn	950	20	Howling Abyss
Pauldrons of Whiterock Pauldrons of Whiterock	400	100 %	Summoner's Rift
Ravenous Hydra Ravenous Hydra	3500	100 %	All maps
Redemption Redemption	2100	50 %	All maps
Rejuvenation Bead Rejuvenation Bead	150	50 %	All maps
Relic Shield Relic Shield	400	25 %	Summoner's Rift
Righteous Glory Righteous Glory	2650	100 %	All maps
Runesteel Spaulders Runesteel Spaulders	400	50 %	Summoner's Rift
Salvation Salvation	2100	150 %	All maps
Shurelya's Reverie Shurelya's Reverie	2050	100 %	All maps
Spirit Visage Spirit Visage	2800	100 %	All maps
Steel Shoulderguards Steel Shoulderguards	400	25 %	Summoner's Rift
Targon's Buckler Targon's Buckler	400	50 %	Summoner's Rift
Tiamat Tiamat	1325	50 %	All maps
Titanic Hydra Titanic Hydra	3500	100 %	All maps
Warmog's Armor Warmog's Armor	2850	200 %	All maps

Consumables

Champion abilities

Runes

Neutral buffs

• Crest of Cinders

Decreasing health regeneration

• Health regeneration can be reduced through healing reduction. See healing reduction.

Notes

Type	Heal and Shield Power	Spirit Visage	Revitalize	Grievous Wounds
Health regeneration
Life steal
Spell vamp
Drain effects
Self heals
Self shields
Incoming heals
Incoming shields
Outgoing heals
Outgoing shields
Bonus health

List of champions' health regeneration

Champions with the lowest or highest health regeneration before items, runes, or abilities

Champion Level	Top 5 champions		Bottom 5 champions
Level 1	1. Darius 1. Pantheon 1. Vi	10 hp5	1. Samira Samira	0 hp5
	2. Illaoi 2. Singed	9.5 hp5	2. Soraka	2.5 hp5
	3. Amumu 3. Ekko 3. Sylas 3. Cho'Gath 3. Volibear 3. Skarner 3. Lillia 3. Ornn 3. Nasus	9 hp5	3. Aatrox	3 hp5
	4. Sejuani 4. Evelynn 4. Camille 4. Qiyana 4. Shen 4. Nautilus 4. Talon 4. Jax 4. Riven 4. Shaco 4. Braum 4. Fiora 4. Irelia 4. Blitzcrank 4. Shyvana 4. Leona 4. Alistar 4. Olaf 4. Tryndamere	8.5 hp5	4. Xayah 4. Aphelios 4. Sivir	3.25 hp5
	5. Dr. Mundo 5. Renekton 5. Xin Zhao 5. Ryze 5. Rumble 5. Galio 5. Garen 5. Jarvan IV 5. Graves 5. Viktor 5. Yorick 5. Zac 5. Fizz 5. Rammus 5. Akali 5. Poppy 5. Kayn	8 hp5	5. Kai'Sa 5. Senna 5. Caitlyn 5. Varus 5. Vayne 5. Ashe	3.5 hp5
Level 18	1. Mega Gnar 1. Gnar	34.25 hp5	1. Samira Samira	0 hp5
	2. Vi	27 hp5	2. Soraka	11 hp5
	3. Darius	26.15 hp5	3. Jinx	12.25 hp5
	4. Sejuani 4. Braum	25.5 hp5	4. Morgana	12.3 hp5
	5. Ornn 5. Sylas 5. Nasus 5. Ekko	24.3 hp5	5. Aphelios 5. Sivir	12.6 hp5

Trivia

Last updated: July 29, 2020, patch V10.15

Without using Grasp of the Undying, Overgrowth, Cho'Gath's Feast, Sion's Soul Furnace, Ravenous Flock or Vladimir with Gathering Storm which potentially allow for infinite amounts of health, what may be the highest health regeneration attainable is 19329 health per 5 seconds, with Dr. Mundo's, thanks to his passive Adrenaline Rush, and his ultimate Sadism, which both scale with maximum health.

Note that Revitalize and  Heal and Shield Power do not affect health regeneration, and that Oceanic Will and Ocean Dragon Soul are not considered as health regeneration effects.

• Base stats: 2095.52 health and 20.75 health regeneration
• Runes:
  • Second Wind
  • Biscuit Delivery
  • Health rune shard
• Items:
  • 3 ×  Warmog's Armor
  • 1 ×  Spirit Visage
  • 1 ×  Cinderhulk
  • 1 ×  Gargoyle Stoneplate
  • 1 ×  Elixir of Iron (consumed)
• Other Buffs:
  • Dr. Mundo is at 0.01% of his maximum health
  • Total Biscuit of Everlasting Will (consumed)
  • Crest of Cinders
  • Dr. Mundo's Adrenaline Rush
  • Dr. Mundo's Sadism
  • Lulu's Wild Growth (with the maximum amount of ability power, with a Yuumi)
  • / Tooth and Nail
  • An additional potion ( ) cannot be consumed because Dr. Mundo's inventory is full.

• Lulu:
  • Items = 175 + 120 × 2 + 120 + 80 + 145 + 136.55 = 896.55 AP
    • Seraph's Embrace's AP = 50 + ( 1285 + 200 + 1400) × 0.03 = 136.55 AP
  • Runes = 50.4 + 30 + 30 + 9 × 2 = 128.4 AP
  • Buffs = 20 + 80 + 50 = 150 AP
  • AP Multiplier = 1 + 0.4 + 0.2 + 0.16 = 1.76
    • Lulu's AP = (896.55 + 128.4 + 150) × 1.76 = 2067.912 AP
    • Wild Growth's bonus health = 600 + 0.5 × 2067.912 = 1633.956 health

• Dr. Mundo (health):
  • Items = 800 × 3 + 450 + 300 = 3150 health
  • Runes = 90 = 90 health
  • Buffs = 1633.956 + 300 = 1933.956 health
  • Maximum Health Multiplier = 1 + 1 = 2
  • Bonus Health Multiplier = 1 + 0.15 = 1.15
    • Dr. Mundo's health = (2095.52 + (3150 + 90 + 1933.956) × 1.15) × 2 = 16091.1388 health

• Dr. Mundo's (health regeneration):
  • Base = 20.75
  • Items = 25% max health + 200% × 3 + 100% = 25% max health + 700% base HP5
  • Buffs = 41.6667% max health + 11.9988% max health + 9% max health + 1.9998% max health + 1.5% max health + 30 + 3 = 66.1653% max health HP5 + 33 flat HP5
  • Health Regen Multiplier = 1 + 0.3 = 1.3
    • Dr. Mundo's Health Regeneration = (20.75 × (1 + 7) + 33 + (16091.1388 × 0.911653)) × 1.3 = 19329.09544856732 health regeneration
      • Or 3866 health per second.

• In the same situation, Dr. Mundo is at 0.01% maximum health so he has currently about 1.6 health.
  • It would take him 4.16 seconds to recover all his missing health.