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
Celestial Eye Celestial Eye	850	50 %	Summoner's Rift
Crystalline Bracer Crystalline Bracer	650	50 %	All maps
Eye of Ascension Eye of Ascension	1500	125 %	Summoner's Rift
Eye of the Aspect Eye of the Aspect	1800	200 %	Summoner's Rift
Force of Nature Force of Nature	2900	200 %	Nexus Blitz
Heart of Targon Heart of Targon	400	50 %	Nexus Blitz
Nomad's Eye Nomad's Eye	850	50 %	Summoner's Rift
Nomad's Medallion Nomad's Medallion	850	50 %	Summoner's Rift
Ohmwrecker Ohmwrecker	2650	150 %	Summoner's Rift, Nexus Blitz
Philosopher's Medallion Philosopher's Medallion	450	50 %	Nexus Blitz
Raptor Cloak Raptor Cloak	900	125 %	All maps
Ravenous Hydra Ravenous Hydra	3500	100 %	All maps
Redemption Redemption	2100	50 %	All maps
Rejuvenation Bead Rejuvenation Bead	150	50 %	All maps
Remnant of the Ascended Remnant of the Ascended	1500	125 %	Summoner's Rift
Remnant of the Aspect Remnant of the Aspect	1800	200 %	Summoner's Rift
Righteous Glory Righteous Glory	2650	100 %	All maps
Salvation Salvation	2100	150 %	All maps
Spirit Visage Spirit Visage	2800	100 %	All maps
Stat-Stick of Stoicism Stat-Stick of Stoicism	7237	100 %	Nexus Blitz
Targon's Brace Targon's Brace	850	50 %	Summoner's Rift
Tiamat Tiamat	1325	50 %	All maps
Timeworn Face of the Mountain Timeworn Face of the Mountain	2100	100 %	Twisted Treeline
Timeworn Nomad's Medallion Timeworn Nomad's Medallion	850	50 %	Twisted Treeline
Timeworn Talisman of Ascension Timeworn Talisman of Ascension	2200	175 %	Twisted Treeline
Timeworn Targon's Brace Timeworn Targon's Brace	850	50 %	Twisted Treeline
Titanic Hydra Titanic Hydra	3500	100 %	All maps
Warmog's Armor Warmog's Armor	2850	200 %	All maps
Zz'Rot Portal Zz'Rot Portal	2700	125 %	Summoner's Rift, Nexus Blitz

• Chalice of Harmony
• Doran's Shield
• Guardian's Horn
• Mikael's Crucible
• Spectre's Cowl
• Spirit Visage
• Warmog's Armor

Consumables

• Corrupting Potion
• Health Potion
• Hunter's Potion
• Total Biscuit of Everlasting Will
• Refillable Potion

Champion abilities

• Dr. Mundo's Adrenaline Rush and Sadism
• Garen's Perseverance
• Olaf's Vicious Strikes
• Singed's Insanity Potion
• Trundle's Frozen Domain
• Volibear's Chosen of the Storm

Runes

• Revitalize (while below 40% health)
• Second Wind
• Biscuit Delivery

Neutral buffs

• Crest of Cinders
• Heart of Oceans

Decreasing health regeneration

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

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. Vi	10 hp5	1. Soraka	2.5 hp5
	2. Illaoi	9.5 hp5	2. Sivir 2. Xayah	3.25 hp5
	3. Amumu 3. Cho'Gath 3. Ekko 3. Nasus 3. Sion 3. Skarner	9 hp5	3. Ashe 3. Caitlyn 3. Kai'Sa 3. Varus	3.5 hp5
	4. Alistar 4. Blitzcrank 4. Camille 4. Evelynn 4. Fiora 4. Irelia 4. Jax 4. Kayle	8.5 hp5	4. Draven 4. Jhin 4. Jinx 4. Kalista 4. Kog'Maw 4. Lucian 4. Miss Fortune 4. Tristana	3.75 hp5
	5. Aatrox 5. Braum 5. Dr. Mundo 5. Fizz 5. Galio 5. Garen 5. Graves 5. Jarvan IV	8 hp5	5. Ezreal 5. Mordekaiser 5. Warwick	4 hp5
Level 18	1. Gnar	34.25 hp5	1. Mordekaiser	9.1 hp5
	2. Vi	27 hp5	2. Soraka	11 hp5
	3. Darius	26.15 hp5	3. Jinx	12.25 hp5
	4. Braum	25 hp5	4. Sivir	12.6 hp5
	5. Ekko 5. Nasus	24.3 hp5	5. Ashe 5. Caitlyn 5. Kai'Sa 5. Varus	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.