Attack Speed (often shortened as AS or ASPD) is the frequency of a champion's basic attacks. They are measured and displayed as attacks per second.

  • Attack speed cannot be increased beyond 2.5 attacks per second (or 1 attack every two fifths of a second, or 0.4 seconds).

Attack speed bonuses (from items or abilities, etc.) are in percent. The bonus is a percentage of the champions base attack speed. Therefore, champions with higher base attack speed benefit more from attack speed increases. Like all stats, one's attack speed can be increased via leveling up, items, runes, buffs, and abilities. Some items and abilities (only those two) decrease enemy attack speed.

Calculations

Base attack speed

Every champion's base attack speed (ASbase) is calculated using a hidden variable called attack delay,[1] which ranges from −0.10 to 0.3. As ASbase is the value that is modified by bonus attack speed, and the amount shown at level 1 for most champions (excepting those with bonus attack speed at level 1), it is the value shown on the League of Legends Wiki.

\pagecolor{Black}\color{White}{\it AS}_{\rm base} = {0.625 \over 1 + {\it attack\ delay}}

Bonus attack speed sources

Bonus AS% stacks additively.

Example: Stinger item Stinger grants +35% attack speed and Nashor's Tooth item Nashor's Tooth also grants +50% attack speed, so the champion gains +85% in total.

Notes:

  • Final attack speed cannot go above the cap of 2.5 attacks per second.
  • Many in-game tooltip percentages (such as runes) have been rounded, so results may be slightly different unless the precise numbers are known.

Example

  • Calculating base attack speed:
    • Twisted FateSquare Twisted Fate's attack delay is −0.04.
    • \pagecolor{Black}\color{White}{0.625 \over (1 - 0.04)} = {0.625 \over 0.96} = 0.651041 \overline{6}. This is Twisted FateSquare Twisted Fate's base attack speed, seen at level 1 (without runes, etc.).
    • The number seen in game is rounded to 3 decimal places: 0.651.
  • Calculating "bonus attack speed":
    • Every time Twisted FateSquare Twisted Fate levels up, he gains bonus AS% based on percentage growth 3.22% and his level through the statistics growth formula.
      • At level 18 he has gained \pagecolor{Black}\color{White}3.22\% \times\left({7 \over 400}\times(18^2-1)+{267\over400}\times(18-1)\right)=54.74\% as bonus AS%.
    • At 18 he has maxed Stacked Deck Stacked Deck increasing his attack speed by 30%.
    • Let's say he has the Fury mastery 2016.png Fury mastery up to 4%.
    • Let's also say he has Stinger item Stinger: +35%.
    • All together he has: 54.74% + 30% + 4% + 35% = 123.74% bonus AS% or 1.2374 bonus AS as a decimal.
  • Final calculation:
    \pagecolor{Black}\color{White}\begin{align} & {0.625 \over 0.96} + \left({{0.625 \over 0.96} \times 123.74\%}\right) \\ =& 0.651041\overline6 + ({0.651041 \times 123.74\%}) \\ \approx & 1.45664 \end{align}
    • In game, the number will be shown as: 1.457.

Increasing attack speed

Items

Item Cost Amount Availability
Berserker's Greaves item Berserker's Greaves1100 Gold 35 %Common
Blade of the Ruined King item Blade of the Ruined King3400 Gold 25 %Common
Bloodrazor item Bloodrazor1625 Gold 50 %Classic
Dagger item Dagger300 Gold 12 %Common
Guinsoo's Rageblade item Guinsoo's Rageblade3600 Gold 25 %Common
Kircheis Shard item Kircheis Shard800 Gold 15 %Common
Nashor's Tooth item Nashor's Tooth3000 Gold 50 %Common
Phantom Dancer item Phantom Dancer2600 Gold 45 %Common
Rapid Firecannon item Rapid Firecannon2600 Gold 30 %Common
Recurve Bow item Recurve Bow1000 Gold 25 %Common
Runaan's Hurricane item Runaan's Hurricane2600 Gold 40 %Common
Statikk Shiv item Statikk Shiv2600 Gold 35 %Common
Stinger item Stinger1100 Gold 35 %Common
Trinity Force item Trinity Force3733 Gold 40 %Common
Trinity Fusion item Trinity Fusion4733 Gold 50 %Common
Wit's End item Wit's End2500 Gold 40 %Common
Zeal item Zeal1200 Gold 15 %Common
  • Ardent Censer item Ardent Censer: Passive: Unique: Heals and shields on allied champions (excluding yourself) enhance your basic attacks and theirs for 6 seconds. Granting you and them +10% - 30% (based on target's level) attack speed and 5 - 20 (based on target's level) bonus on-hit magic damage.
  • Guinsoo's Rageblade item Guinsoo's Rageblade: +25% attack speed. Passive: Unique: Basic attacks grant +8% attack speed, +3 attack damage and +4 ability power for 5 seconds, stacking up to 6 times, granting a total of +48% attack speed, +18 attack damage and +24 ability power. At 6 stacks, gain Guinsoo's Rage.

Champion abilities

Note: Only the attack speed buff effect of these abilities is shown here, to read more information on each of these abilities, follow the link on each of them.

Champion's ability Bonus type Bonus Notes
AatroxSquare Aatrox's Blood Well Blood Well Passive 30% / 40% / 50% / 60% When under the effect of Hellbent.
AatroxSquare Aatrox's Massacre Massacre Active 40 / 50 / 60% Duration: 12 seconds.
Cooldown: 100 / 85 / 70 seconds.
AsheSquare Ashe's Ranger's Focus Ranger's Focus Active 20 / 25 / 30 / 35 / 40% Duration: 4 seconds.
Require: 4 Focus stacks.
AzirSquare Azir's Arise! Arise! Passive 20 / 30 / 40 / 50 / 60%
BlitzcrankSquare Blitzcrank's Overdrive Overdrive Active 30 / 38 / 46 / 54 / 62% Duration: 5 seconds.
Cooldown: 15 seconds.
DianaSquare Diana's Moonsilver Blade Moonsilver Blade Passive 20% / 50% / 60% / 70% / 80% / 90% After casting an ability, on her 3 next basic attacks.
DravenSquare Draven's Blood Rush Blood Rush Active 20 / 25 / 30 / 35 / 40% Duration: 3 seconds.
Cooldown: 12 seconds.
Catching an Spinning Axe axe resets Blood Rush's cooldown.
EliseSquare Elise's Skittering Frenzy Skittering Frenzy Active 60 / 80 / 10 / 120 / 140% Duration: 3 seconds.
Cooldown: 12 seconds.
Also passively increases Spider Queen Spiderlings' attack speed by the same amount.
EzrealSquare Ezreal's Rising Spell Force Rising Spell Force Passive 10 / 12 / 14%
(Max: 50 / 60 / 70%)
Duration: 6 seconds.
After casting an ability. Stacks up to 5 times.
EzrealSquare Ezreal's Essence Flux Essence Flux Active Increases allied champion attack speed by 20 / 25 / 30 / 35 / 40% Duration: 5 seconds.
Cooldown: 9 seconds.
FioraSquare Fiora's Bladework Bladework Active 50% Duration: 4 seconds.
Cooldown: 13 / 11 / 9 / 7 / 5 seconds.
On her two next basic attack.
GnarSquare Gnar's Rage Gene Rage Gene Passive 5.5 - 99 (based on level)% While in GnarSquare Mini Gnar form.
GnarSquare Gnar's Hop Hop Active 20 / 30 / 40 / 50 / 60% Duration: 3 seconds.
Cooldown: 22 / 19.5 / 17 / 14.5 / 12 seconds.
Jarvan IVSquare Jarvan IV's Demacian Standard Demacian Standard Passive 15 / 17.5 / 20 / 22.5 / 25%
Jarvan IVSquare Jarvan IV's Demacian Standard Demacian Standard Active Increases allied champion attack speed by 15 / 17.5 / 20 / 22.5 / 25% Duration: 8 seconds.
Cooldown: 13 / 12.5 / 12 / 11.5 / 11 seconds.
When near the flag.
JaxSquare Jax's Relentless Assault Relentless Assault Passive 3.5 / 5 / 6.5 / 8 / 9.5 / 11%
(Max: 28 / 40 / 52 / 64 / 76 / 88%)
Duration: 2.5 seconds.
When basic attacking. Stacks up to 8 times.
JayceSquare Jayce's Hyper Charge Hyper Charge Active Sets attack speed to 2.5. Duration: 4 seconds.
On his next 3 basic attacks.
JinxSquare Jinx's Get Excited! Get Excited! Passive 15% total attack speed. Duration: 6 seconds.
Upon a champion or structure takedown within 3 seconds. Stacks infinitely.
JinxSquare Jinx's Pow-Pow Pow-Pow Passive Max: 0% - 70% (based on level) plus 30 / 40 / 50 / 60 / 70%. Duration: 2.5 seconds.
When basic attacking with Pow-Pow. Stacks up to 3 times.
KledSquare Kled's Violent Tendencies Violent Tendencies Passive 150% Duration: 4 seconds.
Cooldown: 14 / 12.5 / 11 / 9.5 / 8 seconds.
On his next 4 basic attacks.
Kog'MawSquare Kog'Maw's Caustic Spittle Caustic Spittle Passive 15 / 20 / 25 / 30 / 35%
Lee SinSquare Lee Sin's Flurry Flurry Passive 40% Duration: 3 seconds.
After casting an ability. On his next 2 basic attacks.
LuluSquare Lulu's Whimsy Whimsy Active Increases allied champion attack speed by 25 / 30 / 35 / 40 / 45% Duration: 3 / 3.25 / 3.5 / 3.75 / 4 seconds.
Cooldown: 16 / 15 / 14 / 13 / 12 seconds.
Master YiSquare Master Yi's Highlander Highlander Active 30 / 55 / 80% total attack speed. Duration: 7 seconds.
Cooldown: 85 seconds.
Kills and assists extends the duration by 7 seconds.
Miss FortuneSquare Miss Fortune's Strut Strut Active 40 / 55 / 70 / 85 / 100% Duration: 6 seconds.
Cooldown: 12 seconds.
NidaleeSquare Nidalee's Primal Surge Primal Surge Active Increases allied champion attack speed by 20 / 30 / 40 / 50 / 60% Duration: 7 seconds.
Cooldown: 12 seconds.
NocturneSquare Nocturne's Shroud of Darkness Shroud of Darkness Passive 20 / 25 / 30 / 35 / 40%
NocturneSquare Nocturne's Shroud of Darkness Shroud of Darkness Active 40 / 50 / 60 / 70 / 80% Duration: 5 seconds.
Cooldown: 20 / 18 / 16 / 14 / 12 seconds.
Upon blocking a spell within 1.5 seconds.
NunuSquare Nunu's Blood Boil Blood Boil Active Increases his own and allied champion attack speed by 25 / 30 / 35 / 40 / 45% Duration: 12 seconds.
Cooldown: 15 seconds.
OlafSquare Olaf's Berserker Rage Berserker Rage Passive 1% per 1% of his missing health
OlafSquare Olaf's Vicious Strikes Vicious Strikes Active 40 / 50 / 60 / 70 / 80% Duration: 6 seconds.
Cooldown: 16 seconds.
QuinnSquare Quinn's Heightened Senses Heightened Senses Passive 20 / 35 / 50 / 65 / 80% Duration: 2 seconds.
When attacking a Harrier Vulnerable target.
ShenSquare Shen's Twilight Assault Twilight Assault Active 50% Duration: 8 seconds.
Cooldown: 8 / 7.25 / 6.5 / 5.75 / 5 seconds.
On his next 3 basic attacks. When his Spirit Blade collides with an enemy champion.
SivirSquare Sivir's On the Hunt On the Hunt Passive 30 / 45 / 60% While Ricochet Ricochet is active.
TaricSquare Taric's Bravado Bravado Passive 100% total attack speed. Duration: 4 seconds.
When casting an ability. On his next 2 basic attacks.
TeemoSquare Teemo's Guerrilla Warfare Guerrilla Warfare Passive 20 / 40 / 60 / 80% Duration: 3 seconds.
After leaving stealth.
TristanaSquare Tristana's Rapid Fire Rapid Fire Active 30 / 50 / 70 / 90 / 110% Duration: 7 seconds.
Cooldown: 20 / 19 / 18 / 17 / 16 seconds.
TrundleSquare Trundle's Frozen Domain Frozen Domain Active 20 / 35 / 50 / 65 / 80% Cooldown: 15 seconds.
While in the frozen area.
Twisted FateSquare Twisted Fate's Stacked Deck Stacked Deck Passive 10 / 15 / 20 / 25 / 30%
TwitchSquare Twitch's Ambush Ambush Active 30 / 35 / 40 / 45 / 50% Duration: 5 seconds.
Cooldown: 16 seconds.
After leaving stealth.
UdyrSquare Udyr's Monkey's Agility Monkey's Agility Passive 10% (Max: 30%) Duration: 5 seconds.
When changing stance. Stacks up to 3 times.
UdyrSquare Udyr's Tiger Stance Tiger Stance Active 30 / 40 / 50 / 60 / 70% Duration: 5 seconds.
Cooldown: 6 seconds.
VarusSquare Varus' Living Vengeance Living Vengeance Passive 40% (+ 50% bonus attack speed)
(Minion or monster kill: 20% (+ 25% bonus attack speed))
Duration: 5 seconds.
On champion takedown. Attack speed halved for minions and monsters kills.
ViSquare Vi's Denting Blows Denting Blows Passive 30 / 35 / 40 / 45 / 50% Duration: 4 seconds.
After attacking the same target 3 times.
VolibearSquare Volibear's Frenzy Frenzy Passive 4 / 8 / 12 / 16 / 20% (Max: 12 / 24 / 36 / 48 / 60%) Duration: 4 seconds.
When basic attacking. Stacks 3 times.
WarwickSquare Warwick's Blood Hunt Blood Hunt Passive 50 / 65 / 80 / 95 / 110% (Max: 150 / 195 / 240 / 285 / 330%) Against targets below 50% of their maximum health. Attack speed tripled against targets below 20% of their maximum health.
WukongSquare Wukong's Nimbus Strike Nimbus Strike Active 30 / 35 / 40 / 45 / 50% Duration: 4 seconds.
Cooldown: 8 seconds.
After hitting a target with this ability.
Xin ZhaoSquare Xin Zhao's Battle Cry Battle Cry Active 40 / 50 / 60 / 70 / 80% Duration: 5 seconds.
Cooldown: 16 / 15 / 14 / 13 / 12 seconds.

Runes

Reducing attack speed

Note: Attack speed reductions stack multiplicatively and take percentages off the final attack speed value after all bonus attack speed has been factored in.

Items

Champion abilities

Note: Only the attack speed reduction effect of these abilities is shown here, to read more information on each of these abilities, follow the link on each of them.

  • FioraSquare Fiora's Riposte Riposte slows affected enemy champion's attack speed by 50% for 1.5 seconds.
  • MalphiteSquare Malphite's Ground Slam Ground Slam slows affected units' attack speed by 30 / 35 / 40 / 45 / 50% for 3 seconds.
  • NasusSquare Nasus' Wither Wither reduces an enemy unit's attack speed by 17.5% plus an additional 1.5 / 3 / 4.5 / 6 / 7.5% per second for 5 seconds, for a total of 23.5 / 29.5 / 35.5 / 41.5 / 47.5%.
  • NunuSquare Nunu's Ice Blast Ice Blast reduces an enemy unit's attack speed by 25% for 3 seconds.
  • NunuSquare Nunu's Absolute Zero Absolute Zero slows the attack speed of all nearby enemy units by 25% while channeling for 3 seconds.

Notes

YasuoSquare Yasuo's Steel Tempest Steel Tempest (bonus attack speed only) is the only ability that directly scales with a champion's attack speed statistic. Many other abilities can scale indirectly (for example, through the flat cooldown reduction per attack with Master YiSquare Master Yi's Alpha Strike Alpha Strike).

List of champions' attack speed

The highest and lowest base attack speed champions.
Champion Level Top 5 champions Bottom 5 champions
Level 1 1. MaokaiSquare Maokai 0.798 AS 1. GravesSquare Graves 0.481 AS
2. ShenSquare Shen 0.749 AS 2. IllaoiSquare Illaoi 0.571 AS
3. AmumuSquare Amumu
3. KayleSquare Kayle
3. MalphiteSquare Malphite
3. ZacSquare Zac
0.734 AS 3. AnnieSquare Annie 0.579 AS
4. Dr. MundoSquare Dr. Mundo
4. RammusSquare Rammus
0.719 AS 4. UrgotSquare Urgot 0.595 AS
5. NautilusSquare Nautilus 0.705 AS 5. MordekaiserSquare Mordekaiser 0.601 AS
Level 18 1. GnarSquare Gnar 1.263 AS 1. GravesSquare Graves 0.694 AS
2. VayneSquare Vayne 1.105 AS 2. AnnieSquare Annie 0.713 AS
3. MalphiteSquare Malphite 1.102 AS 3. DariusSquare Darius
3. JinxSquare Jinx
0.731 AS
4. KennenSquare Kennen 1.089 AS 4. BlitzcrankSquare Blitzcrank 0.745 AS
5. TeemoSquare Teemo 1.086 AS 5. HeimerdingerSquare Heimerdinger
5. BrandSquare Brand
5. Aurelion SolSquare Aurelion Sol
5. Vel'KozSquare Vel'Koz
5. LuxSquare Lux
5. XerathSquare Xerath
5. TaliyahSquare Taliyah
5. LissandraSquare Lissandra
0.77 AS

Trivia

Last updated: November 21, 2017 – V7.23


Last updated: December 14th, 2017 – V7.24b

  • The most attack speed a champion can reach at level 1 without any active buffs, with the initial Gold 500 is 1.041 with MaokaiSquare Maokai.
  • Base AS: 0.694 AS
  • Item:
  • Runes:
  • Passive Buffs:
    • MaokaiSquare Maokai's passive starting attack speed.
  • Relevant mathematics:
    • MaokaiSquare Maokai's total AS:
      • Items = Dagger item 12% = 12% bonus AS
      • Runes = Inspiration icon 20% + Legend- Alacrity rune 3% = 23% bonus AS
      • Buffs = MaokaiSquare 15% = 15% bonus AS
    • MaokaiSquare Maokai's total AS = 0.694 × (1 + 0.12 + 0.23 + 0.15) = 1.041 total AS


References