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. Soraka	2.5 hp5
	2. Singed 2. Illaoi	9.5 hp5	2. Aatrox	3 hp5
	3. Ekko 3. Amumu 3. Sylas 3. Cho'Gath 3. Nasus 3. Ornn 3. Volibear 3. Skarner	9 hp5	3. Xayah 3. Sivir 3. Aphelios	3.25 hp5
	4. Camille 4. Olaf 4. Evelynn 4. Shyvana 4. Jax 4. Qiyana 4. Shen 4. Nautilus 4. Riven 4. Irelia 4. Braum 4. Fiora 4. Shaco 4. Talon 4. Sejuani 4. Leona 4. Alistar 4. Blitzcrank 4. Tryndamere	8.5 hp5	4. Kai'Sa 4. Senna 4. Caitlyn 4. Ashe 4. Varus 4. Vayne	3.5 hp5
	5. Poppy 5. Galio 5. Viktor 5. Rumble 5. Akali 5. Graves 5. Yorick 5. Xin Zhao 5. Jarvan IV 5. Rammus 5. Fizz 5. Renekton 5. Zac 5. Kayn 5. Dr. Mundo 5. Garen 5. Ryze	8 hp5	5. Tristana 5. Miss Fortune 5. Kalista 5. Kog'Maw 5. Jinx 5. Jhin 5. Lucian 5. Twitch 5. Draven	3.75 hp5
Level 18	1. Gnar 1. Mega Gnar	34.25 hp5	1. Soraka	11 hp5
	2. Vi	27 hp5	2. Jinx	12.25 hp5
	3. Darius	26.15 hp5	3. Morgana	12.3 hp5
	4. Sejuani 4. Braum	25.5 hp5	4. Sivir 4. Aphelios	12.6 hp5
	5. Ekko 5. Nasus 5. Ornn 5. Sylas	24.3 hp5	5. Kai'Sa 5. Varus 5. Vayne 5. Caitlyn 5. Senna 5. Ashe	12.85 hp5

Trivia

Last updated: December 21, 2017, patch V7.24b

Without using Grasp of the Undying or Overgrowth which potentially allows for infinite amounts of health, What may be the highest health regeneration attainable is 9619 HP per 5 seconds, with Dr. Mundo's, thanks to his passive Adrenaline Rush, and his ultimate Sadism, which both scale with maximum health.

• Base stats: 2095.5 health and 20.5 health regeneration
• Runes:
  • Trait: Inspiration ( Resolve as a secondary path)
  • Kleptomancy
  • Celestial Body
  • Biscuit Delivery (can also be obtained with Kleptomancy)
  • Revitalize
• Items:
  • 4 Warmog's Armor
  • 1 Spirit Visage
  • 1 Cinderhulk
• Buffs:
  • Crest of Cinders
  • Ocean Drake buff
    • Dr. Mundo is at 0.01% of his maximum health
  • Dr. Mundo's Adrenaline Rush
  • Dr. Mundo's Sadism
  • Lulu's Wild Growth (with the maximum amount of ability power)
  • / Tooth and Nail
  • Elixir of Iron (consumed)
  • Pilfered Health Potion (consumed)
  • Travel Size Elixir of Iron (consumed)
  • Total Biscuit of Everlasting Will (consumed)
  • A Health Potion cannot be consumed because Dr. Mundo will be full stuffed.

• Lulu's AP:
  • Items = 120 × 4 + 145 + 154.55 = 779.55 AP
    • Seraph's Embrace's AP = 80 + ( 1285 + 200 + 1000) × 0.03 = 154.55 AP
  • Runes = 20 + 40 + 30 + 30 = 120 AP
  • Buffs = 40 + 50 = 90 AP
  • AP Multiplier = 1 + 0.35 + 0.36 = 1.71
    • Lulu's AP = (779.55 + 120 + 90) × 1.71 = 1692.1305 AP
    • Wild Growth's bonus health = 600 + 0.5 × 1692.1305 = 1446.06525 health

• Dr. Mundo's health:
  • Items: = 800 × 4 + 450 + 300 = 3950 health
  • Runes: = 145 + 100 = 245 health
  • Buffs = 1446.06525 + 300 + 150 = 1896.06525 health
  • Bonus Health Multiplier = 1 + 0.2 = 1.2
    • Dr. Mundo's health = 2095.5 + (245 + 3950 + 1896.06525) × 1.2 = 9404.7783 health

• Dr. Mundo's health regeneration:
  • Base = 20.5
  • Items = 200% × 4 + 100% = 900% base health regeneration
  • Buffs = 25% max health + 14.9985% max health + 17.9982% max health + 9% max health + 1.5% max health + 50 + 30 = 68.4967% max health health regen + 80 health regeneration
  • Health Regen Amplification = 10% ×  30% = 1.43
    • Dr. Mundo's Health Regeneration = (20.5 × (1 + 9) + 80 + (9404.7783 × 0.684967)) × 1.43 = 9619.556772 health regeneration
      • Or 1923.9113544 health per second.

• In the same situation, Dr. Mundo is at 0.01% maximum health so he has currently about 94 health.
  • It would take him 4.89 seconds to recover all his missing health.