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Turn Rate
 
 

Counter Helix icon.png

Turn rate is the speed at which a unit can turn. When moving to a location, a unit first turns to face that location, then begins walking. Similarly, when targeting another unit with an attack or spell, a unit first turns until it is facing the target, and then continues with the action. A unit only starts moving, or only starts casting a spell on a targeted area or point when the target is within 11.5°[1] angle in front of the ordered unit. This can make kiting more difficult, as the hero has to spend time turning towards and away from the target with each attack.

Every unit has a base turn rate, which can be lowered by some abilities. The vast majority of heroes have a turn rate between 0.6 and 0.5, meaning it takes between 0.15 and 0.19 seconds for the hero to make a 180° turn.

There are currently no Talent talents that improve turn rate.

Mechanics[]

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Turn rate is expressed in radians per 0.03 seconds. A 180° turn is the same as (3.1416) radians, therefore 0.03 divided by the turn rate of the unit equals the time it takes to turn 180°.

Turn rate is defined as

With t being the time it takes to turn around and T the turn rate sources.

Turn rate slow directly affects the base turn rate, and all sources of turn rate slow stack multiplicatively.

With TSet being the Set Turn Rate Value, Tb the Base Turn Rate, r the Turn Rate Slow Value and a the Turn Rate Improve Value.

A unit does not immediately start turning at the highest rate it can turn. The turn rate ramps as the unit starts turning, reaching the unit's max turn rate after a certain amount of time. The rate at which the turn rate ramps up is unknown.

If a unit starts turning due to an ability or item cast order (by targeting a point, area or unit which is not within the required 11.5° facing angle), the turning cannot be canceled by a move, attack or a new spell cast order. Because the 11.5° angle can be in either direction, this creates a 23° angle directly in front of the hero allowing instant actions on any target within 23°. For any target beyond this angle, the hero must wait until they turn before the action occurs. The above formula is used to find the maximum time, so the time until the action takes place is actually ≤ 168.5°.

Any command ordered while turning due to a spell cast order gets queued up and executed once the spell is cast. In order to cancel the spell or ability cast, the player must issue a stop or halt command, in the same way how to cancel spell during its cast animation. This is to prevent accidental canceling of casts due to fast clicking. Issuing a stop or halt command (with S) does not stop the unit from turning if it has already started to turn, but stops the order which initiated the turning. For example, this allows Templar Assassin minimap icon.png Templar Assassin to turn during Meld without canceling the ability, as long as the move command is stopped before the targeted point is within the required angle.

Stacking[]

Example 1
Earthshaker minimap icon.png Earthshaker is affected by a turn rate slow of 70%. What is his current actual turn rate? How long would it take for him to turn 180°?
Earthshaker minimap icon.png Earthshaker affected by a turn rate slow of 70% has a lowered turn rate of 0.27 and it takes him roughly 0.349s to turn 180° in this example.
Example 2
Earthshaker minimap icon.png Earthshaker is affected by two turn rate slows of 70% and 50%. What is his current actual turn rate? How long would it take for him to turn 180°?
Earthshaker minimap icon.png Earthshaker affected by two turn rate slow of 70% and 50% has a lowered turn rate of 0.135 and it takes him roughly 0.698s to turn 180° in this example.

Turn Rate Comparison[]

Below is a comparison of the turn rates of all 121 heroes:

Heroes Base turn rate Time required to turn 180°/sec
Batrider, Bristleback, Earthshaker, Faceless Void, Hoodwink, Lifestealer, Pangolier, Phoenix, Shadow Fiend 0.9 0.105s
Death Prophet, Magnus, Mars, Puck, Storm Spirit, Windranger 0.8 0.118s
Arc Warden, Dark Willow, Dazzle, Drow Ranger, Io, Meepo, Oracle, Pudge, Rubick, Slark, Sniper, Templar Assassin, Tusk, Void Spirit 0.7 0.135s
Abaddon, Alchemist, Ancient Apparition, Anti-Mage, Axe, Bane, Beastmaster, Bloodseeker, Bounty Hunter, Brewmaster, Broodmother, Centaur Warrunner, Chaos Knight, Chen, Clinkz, Clockwerk, Crystal Maiden, Dark Seer, Dawnbreaker, Disruptor, Doom, Dragon Knight, Earth Spirit, Elder Titan, Ember Spirit, Enchantress, Enigma, Grimstroke, Gyrocopter, Huskar, Invoker, Jakiro, Juggernaut, Keeper of the Light, Kunkka, Legion Commander, Leshrac, Lich, Lina, Lion, Lone Druid, Luna, Lycan, Medusa, Mirana, Monkey King, Morphling, Naga Siren, Nature's Prophet, Necrophos, Night Stalker, Nyx Assassin, Ogre Magi, Omniknight, Outworld Destroyer, Phantom Assassin, Phantom Lancer, Pugna, Queen of Pain, Razor, Riki, Sand King, Shadow Demon, Shadow Shaman, Silencer, Skywrath Mage, Slardar, Snapfire, Spectre, Spirit Breaker, Sven, Techies, Terrorblade, Tidehunter, Timbersaw, Tinker, Tiny, Treant Protector, Troll Warlord, Underlord, Undying, Ursa, Vengeful Spirit, Venomancer, Viper, Visage, Warlock, Weaver, Winter Wyvern, Witch Doctor, Wraith King, Zeus 0.6 0.157s

Modifying Turn Rate[]

Several abilities and items have abilities that slows or improve turn rate. For better readability, some of the turn rates in pages are given as degrees per second, instead of radians per 0.03 seconds.

Turn Rate Slowing Abilities[]

The following abilities slows turn rate:

Turn Rate Slowing Abilities
  • Sticky Napalm icon.png
    Max Stacks: 10
    Turn Rate Slow: 10%/30%/50%/70%
    Stack Duration: 8
  • Mystic Snake icon.png
    Turn Rate Slow: 50%
    Slow Duration: 3
  • Stone Gaze icon.png
    Radius: 1200
    Facing Angle: 85°
    Turn Rate Slow: 35%
    Duration: 5/5.5/6 (Talent 7/7.5/8)
    Affect units while facing the caster.

Turn Rate Improving Abilities[]

The following abilities improves turn rate:

Turn Rate Improving Abilities
  • Phase Boots icon.png
    Turn Rate (Melee): 1
    Duration: 3
    For melee heroes, increases the base turn rate to the given value for the duration.
  • Spider Legs icon.png
    Turn Rate Increase: 50%
    Passive.

Turn Rate Setting Abilities[]

Set Turn Rate ( ) sets a unit's turn rate to a fixed value for the duration, so it cannot be altered by other effects.

The following abilities sets turn rate to the given value for the duration.

Turn Rate Setting Abilities
  • Jetpack icon.png
    Turn Rate: 0.039
    Duration: 6
    Requires Aghanim's Shard icon.png Aghanim's Shard. This equals to 75° per second.
  • Sharpshooter icon.png
    Turn Rate: 0.031
    Max Aim Time: 5
    This equals to 60° per second.
  • Sun Ray icon.png
    Turn Rate: 0.013
    Ray Duration: 6
    This equals to 25° per second.
  • Rolling Thunder icon.png
    Turn Rate: 0.063
    Turn Rate After Start/Jump/Bounce: 0.149
    Turn Rate Boost Duration: 0.25
    Rolling Thunder Duration: 10 (Talent 13
    Sets Pangolier's turn rate while ability is active to 120° per second.
    When boosted, adds on an extra 165° per second, effectively increases the turn rate to 285 per second for that time.
  • Roll Up icon.png
    Turn Rate: 0.092
    Roll Duration on Attack: 0.75
    Roll Up Duration: 4
    Requires Aghanim's Shard icon.png Aghanim's Shard.
    Sets Pangolier's turn rate while ability is active to 175° per second. Pangolier does not roll during Roll Up, if an attack of a hero lands on him, he rolls for 0.75 seconds.
  • Mortimer Kisses icon.png
    Turn Rate: 0.039
    Launch Duration: 6
    This equals to 75° per second.

Abilities Preventing Turning[]

The following abilities completely prevent the affected unit from turning:

Abilities Preventing Turning
  • Activate Fire Remnant icon.png
    While traveling, Ember Spirit minimap icon.png Ember Spirit cannot turn, but he still requires to face his targets to attack, cast abilities and use items.
  • Leap icon.png
    During Leap, Mirana minimap icon.png Mirana can only attack, cast abilities, and use items in the direction she is facing.
  • Omnislash icon.png
    During Omnislash, Juggernaut minimap icon.png Juggernaut cannot turn and does not need to turn in order to cast targeted spells or items. However, Blade Fury is inactive for the duration and cannot be cast.
  • Swiftslash icon.png
    Requires Aghanim's Scepter icon.png Aghanim's Scepter.
    Same values and notes from Omnislash applies.
  • Bulwark icon.png
    Can be toggled, removing Mars minimap icon.png Mars's ability to attack, and locking the direction he is facing. When active, reduces movement speed and redirects attack projectiles aimed at Mars's allies towards Mars instead.
  • Icarus Dive icon.png
    Phoenix minimap icon.png Phoenix can attack, cast abilities and use items while diving (including channeling abilities). However, Sun Ray is inactive for the duration and cannot be cast.

Recent Changes[]

Main Article: Turn Rate/Changelogs
Version
Description

References[]