Haste

Haste is a category of stats that encompasses ability haste, basic ability haste, ultimate haste, item haste, and summoner spell haste. It increases the casting speed (decreases the cooldown) of an effect or ability, depending on the specific form of haste.

All forms of haste reduce an effect's total cooldown which is determined at the moment the effect is activated. Haste does not affect static cooldowns nor on-target cooldowns, unless otherwise stated.

Haste replaced  cooldown reduction as an intuitive stat that provides additive increases, removing the need for an artificial cap. Every point of haste has the same benefit compared to the base casting rate; analogous to the way armor and magic resist are calculated.

Reducing ability cooldowns

Main article: Haste/Reducing ability cooldowns

Haste is a generally accessible means to reduce ability cooldowns, but it is not the only method. Some specific effects will decrease the current (remaining) cooldown of abilities when the effect triggers.

Formula

Haste reduces the cooldown of an effect according to this formula:

$\pagecolor{Black}\color{Black}{\rm Reduced\ cooldown}={\rm Base\ Cooldown}\times{100 \over 100+{\rm Haste}}$

Informally, this means that the casting rate (or casting speed) increases by 1% for every point of haste. For example, adding 100 points of haste will double the casting speed (+100%), cutting the cooldown time by half (50% cooldown reduction); adding another 100 points of haste would result in +200% (or triple) casting speed, cutting the original cooldown time by two thirds (~66.6% cooldown reduction).

Values of (ability) haste higher than ~100 rarely occur in regular matches. This means a reduced cooldown of ~50% is the upper limit to expect.

Cooldown reduction (in percent) may be determined from haste according to this formula:

$\pagecolor{Black}\color{Black}{\rm Cooldown\ reduction}={{\rm Haste}\over {\rm Haste}+100}\times{100}$

The formula shows how the cooldown reduction can never reach 100% by adding haste: each additional point of haste gives less cooldown reduction. However, haste does not have diminishing returns in regards to casting speed. Conversely, Cooldown reduction as a percentage value has increasing, potentially unlimited returns that bring the casting speed to infinity as it approaches 100%. This makes it hard to intuitively grasp the value of cooldown reduction compared to the base rate of the effect.

Ability haste

 Ability haste, or  AH, is a statistic that reduces the cooldowns of champion abilities by a percentage. It is the most common form of haste and it is the only haste stat that is displayed by the game client in the HUD's player stat overview. It is capped at 500, which is equivalent to 83.3% cooldown reduction.

• Ability haste itself stacks additively, and each point acquired directly adds to the statistic (1:1).

Ability haste can be gained from buffs, items and runes.

Gold Value ​​​

• Ability haste has a gold value of 50 per point.

Scaling with ability haste

It is important to note that any cooldown that can be reduced through cooldown reduction, will innately scale off of haste (which is, of course, cooldown reduction). However, certain mechanics are special-cased to be affected by ability haste whereas they normally would not be. There are currently no such effects.

Increasing ability haste

Items

This table is automatically generated based on the data from Module:ItemData/data.

Item	Cost	Amount	Availability
Abyssal Mask Abyssal Mask	2400	10	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Anathema's Chains Anathema's Chains	2500	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Archangel's Staff Archangel's Staff	2900	25	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Ataraxia Ataraxia	3000	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Axiom Arc Axiom Arc	3000	25	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Bandleglass Mirror Bandleglass Mirror	1000	10	Nexus Blitz, Classic Summoner's Rift 5v5, All Random All Mid
Black Cleaver Black Cleaver	3000	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Caulfield's Warhammer Caulfield's Warhammer	1100	10	Nexus Blitz, Classic Summoner's Rift 5v5, All Random All Mid
Chempunk Chainsword Chempunk Chainsword	2800	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Cosmic Drive Cosmic Drive	3000	25	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Cry of the Shrieking City Cry of the Shrieking City	2200	25	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Cryptbloom Cryptbloom	2850	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Dawncore Dawncore	2700	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Daybreak Daybreak	2700	30	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Death's Dance Death's Dance	3200	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Echoes of Helia Echoes of Helia	2200	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Eclipse Eclipse	2800	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Enmity of the Masses Enmity of the Masses	2700	35	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Essence Reaver Essence Reaver	2900	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Fiendish Codex Fiendish Codex	900	10	Nexus Blitz, Classic Summoner's Rift 5v5, All Random All Mid
Fimbulwinter Fimbulwinter	2400	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Force of Arms Force of Arms	2900	35	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Frozen Fist Frozen Fist	2600	25	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Frozen Heart Frozen Heart	2500	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Glacial Buckler Glacial Buckler	950	10	Nexus Blitz, Classic Summoner's Rift 5v5, All Random All Mid
Glowing Mote Glowing Mote	250	5	Nexus Blitz, Classic Summoner's Rift 5v5, All Random All Mid
Guardian's Blade Guardian's Blade	950	15	Arena, All Random All Mid
Heavensfall Heavensfall	3100	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Hextech Rocketbelt Hextech Rocketbelt	2600	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Hope Adrift Hope Adrift	2800	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Horizon Focus Horizon Focus	2700	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Hubris Hubris	3000	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Icathia's Curse Icathia's Curse	3100	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Iceborn Gauntlet Iceborn Gauntlet	2600	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Imperial Mandate Imperial Mandate	2300	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Infinity Force Infinity Force	3333	25	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Ionian Boots of Lucidity Ionian Boots of Lucidity	900	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Kindlegem Kindlegem	800	10	Nexus Blitz, Classic Summoner's Rift 5v5, All Random All Mid
Knight's Vow Knight's Vow	2200	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Lich Bane Lich Bane	3100	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Locket of the Iron Solari Locket of the Iron Solari	2200	10	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Lost Chapter Lost Chapter	1200	10	Nexus Blitz, Classic Summoner's Rift 5v5, All Random All Mid
Luden's Companion Luden's Companion	2900	25	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Malignance Malignance	2700	25	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Manamune Manamune	2900	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Mikael's Blessing Mikael's Blessing	2300	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Moonstone Renewer Moonstone Renewer	2200	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Morellonomicon Morellonomicon	2200	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Muramana Muramana	2900	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Nashor's Tooth Nashor's Tooth	3000	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Navori Quickblades Navori Quickblades	3300	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Obsidian Cleaver Obsidian Cleaver	3000	25	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Profane Hydra Profane Hydra	3300	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Ravenous Hydra Ravenous Hydra	3300	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Redemption Redemption	2300	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Reliquary of the Golden Dawn Reliquary of the Golden Dawn	2200	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Riftmaker Riftmaker	3100	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Seraph's Embrace Seraph's Embrace	2900	25	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Serylda's Grudge Serylda's Grudge	3200	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Sheen Sheen	900	10	Nexus Blitz, Classic Summoner's Rift 5v5, All Random All Mid
Shojin's Resolve Shojin's Resolve	3100	25	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Shurelya's Battlesong Shurelya's Battlesong	2200	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Shurelya's Requiem Shurelya's Requiem	2200	25	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Spear of Shojin Spear of Shojin	3100	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Spirit Visage Spirit Visage	2900	10	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Staff of Flowing Water Staff of Flowing Water	2300	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Starcaster Starcaster	2200	25	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Sundered Sky Sundered Sky	3100	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Swordnado Swordnado	2900	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Syzygy Syzygy	2800	25	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
The Baron's Gift The Baron's Gift	3000	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
The Brutalizer The Brutalizer	1337	10	Nexus Blitz, Classic Summoner's Rift 5v5, All Random All Mid
Trinity Force Trinity Force	3333	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Umbral Glaive Umbral Glaive	2600	15	Nexus Blitz, Classic Summoner's Rift 5v5, All Random All Mid
Unending Despair Unending Despair	2800	10	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Upgraded Aeropack Upgraded Aeropack	2600	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Vigilant Wardstone Vigilant Wardstone	2300	20	Classic Summoner's Rift 5v5
Voltaic Cyclosword Voltaic Cyclosword	2900	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Watchful Wardstone Watchful Wardstone	1100	10	Classic Summoner's Rift 5v5
Winter's Approach Winter's Approach	2400	15	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Zeke's Convergence Zeke's Convergence	2200	20	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid

Champion abilities

• Bel'Veth's Void Surge grants ability haste to its per-direction cooldown
• Syndra's Unleashed Power grants ability haste to Dark Sphere

Runes

• Transcendence
• Ability haste rune shard

Neutral buffs

• Crest of Insight
• Hextech Prowess
• Infernal Cinder

Basic ability haste

Basic ability haste reduces the cooldowns of champion basic abilities. It stacks additively with ability haste.

Increasing basic ability haste

Champion abilities

• Sona's Accelerando

Items

• Spear of Shojin

Ultimate haste

Ultimate haste reduces the cooldowns of champion ultimate abilities. It stacks additively with ability haste.

Increasing ultimate haste

• Experimental Hexplate
• Malignance
• Ultimate Hunter

Item haste

Item haste reduces the cooldowns of items with cooldowns, including passives and actives (trinkets count as active items). It stacks additively with ability haste for the cooldowns of items that scale with the stat.

Increasing item haste

• Cosmic Insight
• Ingenious Hunter

• Item haste
• Equivalent CDR
• Item Cooldowns

Item Haste
	None	0	1	2	3	4	5
None	0	20	26	32	38	44	50
	10	30	36	42	48	54	60

Item Haste (Equivalent in CDR)
	None	0	1	2	3	4	5
None	0%	16.67%	20.63%	24.24%	27.54%	30.56%	33.33%
	9.09%	23.08%	26.47%	29.58%	32.43%	35.06%	37.5%

Item Cooldown
Items	Base Cooldown		0	1	2	3	4	5	5
	1.5	1.36	1.25	1.19	1.14	1.09	1.04	1	0.94
	3	2.73	2.5	2.38	2.27	2.17	2.08	2	1.88
	6	5.45	5	4.76	4.55	4.35	4.17	4	3.75
	7	6.36	5.83	5.56	5.3	5.07	4.86	4.67	4.38
	8	7.27	6.67	6.35	6.06	5.8	5.56	5.33	5
	9	8.18	7.5	7.14	6.82	6.52	6.25	6	5.63
	10	9.09	8.33	7.94	7.58	7.25	6.94	6.67	6.25
	15	13.64	12.5	11.9	11.36	10.87	10.42	10	9.38
	18	16.36	15	14.29	13.64	13.04	12.5	12	11.25
	30	27.27	25	23.81	22.73	21.74	20.83	20	18.75
	40	36.36	33.33	31.75	30.3	28.99	27.78	26.67	25
	45	40.91	37.5	35.71	34.09	32.61	31.25	30	28.13
	50	45.45	41.67	39.68	37.88	36.23	34.72	33.33	31.25
	60	54.55	50	47.62	45.45	43.48	41.67	40	37.5
	75	68.18	62.5	59.52	56.82	54.35	52.08	50	46.88
	90	81.82	75	71.43	68.18	65.22	62.5	60	56.25
	120	109.09	100	95.24	90.91	86.96	83.33	80	75
	300	272.73	250	238.1	227.27	217.39	208.33	200	187.5

Summoner spell haste

Summoner spell haste reduces the cooldowns of summoner spells.

Increasing summoner spell haste

• Cosmic Insight
• Dawncore
• Ionian Boots of Lucidity
• Howling Abyss aura

Summoner spell haste

Summoner's Rift
Base cooldown ▶	360s ()	300s ()	240s ()	210s ()	180s ()	90s ()	20s ()
▼  Haste
12 ()	321.43s	267.86s	214.29s	187.5s	160.71s	80.36s	17.86s
18 (/)	305.08s	254.24s	203.39s	177.97s	152.54s	76.27s	16.95s
30 (/ )	276.92s	230.77s	184.62s	161.54s	138.46s	69.23s	15.38s
36 ( )	264.71s	220.59s	176.47s	154.41s	132.35s	66.18s	14.71s
48 ( )	243.24s	202.7s	162.16s	141.89s	121.62s	60.81s	13.51s
Howling Abyss
Base cooldown ▶		300s ()	240s ()	210s ()	180s ()	80s ()	20s ()
▼  Haste
70 ()		176.47s	141.18s	123.53s	105.88s	47.06s	11.76s
82 ()		164.84s	131.87s	115.38s	98.9s	43.96s	10.99s
88 (/)		159.57s	127.66s	111.7s	95.74s	42.55s	10.64s
100 (/)		150s	120s	105s	90s	40s	10s
106 ()		145.63s	116.5s	101.94s	87.38s	38.83s	9.71s
118 ()		137.61s	110.09s	96.33s	82.57s	36.7s	9.17s

Trivia

• There are only two runes that can have their cooldown reduced:
  • Arcane Comet has its remaining cooldown be reduced by a percentage upon hitting an enemy champion with ability damage.
  • Dark Harvest has its cooldown reset to 1.5 seconds upon scoring a takedown against an enemy champion.

---

Highest Ability Haste

Summoner's Rift

Last updated: February 23, 2024, patch V14.4

• The highest attainable ability haste in Summoner's Rift is 203 AH (attainable by all champions), this is equivalent to 67% cooldown reduction.

• Ally:
  • Ornn
• Items:
  • Any 35 AH forged item ( Enmity of the Masses)
  • Archangel's Staff
  • Axiom Arc
  • Cosmic Drive
  • Luden's Companion
  • One of the following: 20 AH legendary item ( Anathema's Chains)
• Runes:
  • Transcendence
  • Ability haste rune shard
• Buffs:
  • Crest of Insight
  • Hextech Prowess x 4

• Ability haste:
  • Items = 35 + 25 + 25 + 25 + 25 + 20 = 155 ability haste
  • Runes = 10 + 8 = 18 ability haste
  • Buff = 10 + 20 = 30 ability haste
    • Total ability haste = 155 + 18 + 30 = 203

Arena

Last updated: August 12, 2023, patch V13.15

• The highest attainable ability haste in Arena is 1244.43 (attainable by all champions), this is equivalent to 92.56% cooldown reduction.
  • This calculation excludes Ornn's Masterwork items as well as the augments that can grant infinite amounts of ability haste, such as Accelerating Sorcery. Champions that can gain an infinite amount of a stat to scale with ability haste also do not count.

• Champions:
  • K'Sante (level 18)
• Ally:
  • Any champion
• Augments:
  • Chauffeur - 100 AH
  • Dashing - 200 AH (on dash/blink spells)
  • Eureka - 20% AP AH
  • Thief's Gloves - 30% increased AH on items
  • Banner of Command - 15% increased AP (augment for ally)
• Items:
  • Cosmic Drive
  • Horizon Focus
  • Juice of Haste
  • Juice of Power
  • Luden's Tempest
  • Night Harvester
  • Rabadon's Deathcap
  • Staff of Flowing Water (on ally)
  • Shurelya's Battlesong

Since most of K'Sante's abilities are dash or blink abilities, the Dashing augment can be taken into account as full value for calculations.

• Ability Haste
  • Eureka AP to AH conversion
    • Total AP: 100 + 100 + 100 + 90 + 90 (level 18) + 80 + 45 + 30 × 1.4 (from Rabadon's Deathcap) × 1.3 (from Thief's Gloves) × 1.15 (from Banner of Command) × 1.1 (from Juice of Power) = 1461.96
      • Eureka AH: 1461.96 × 0.2 = 292.39
        • Total AH with other augments: 292.39 + 200 + 100 = 592.39
  • Item AH
    • Total AH: 55 + 40 + 35 + 35 + 20 = 185
  • Buff AH
    • Total AH: 35 + 20 = 55

Total Ability Haste Calculation = (592.39 + 185 + 55) × 1.3 × 1.15 = 1244.43

Champion statistics