Cast speed

"Cast Speed" redirects here. For the passive skill, see Cast Speed (passive skill).

Cast speed is a keyword and refers to the speed of using skills which are spells and is calculated as uses per second. Casting a spell consists of cast time and other time mechanics and spell effect. Cast speed is calculated as 1 second/cast time of spell.

Cast speed can be found throughout the game, on passive skills, equipment, skill gems, monster affixes, map affixes, and so on.

The base cast time is derived from the spell being used, it is the length of time required to cast a spell. Cast speed is a derived stat which is equal to 1 divided by Cast Time. Therefore if the cast speed is increased, the cast time is reduced. For example, if a player is using a skill with a base cast time of 0.8 seconds, and the player has a total of 50% increased Cast Speed, then the modified cast time can be calculated as follows:

$\color[RGB]{163,141,109} \begin{align} 1 / 0.8 &= 1.25 \text{ casts per second }&\text{base cast speed} \\ 1.25 * ( 1 + 0.5 ) &= 1.88 \text{ casts per second }&\text{modified cast speed} \\ 1 / 1.88 &= 0.53 \text{ seconds }&\text{modified cast time} \end{align}$

Frenzy charges increase cast speed by 4% per charge.

Active skill gems

Main page: List of cast speed related skill gems

Support skill gems

Main page: List of cast speed related skill gems

Base items

Some base items increase or reduce cast speed by a percentage.

Unique items

Some unique items increase or reduce cast speed by a percentage.

Passive skills

There are passive skills that grant cast speed bonuses.

Cast speed

These passive skills grant increased cast speed.

Cast speed and attack speed

These passive skills grant increased cast speed and attack speed

Cast speed with fire skills

These passive skills grant increased cast speed with Fire skills.

Cast speed with Chaos skills

These passive skills grant increased cast speed with Chaos skills.

Cast speed while dual wielding

These passive skills grant increased cast speed while dual wielding.

Cast speed for curses

These passive skills grant increased cast speed for curses.

Totem cast speed

These passive skills grant increased cast speed for totems.

Minion cast speed

These passive skills grant increased cast speed for minions.

Timeless Jewel passive skills

The following passive skills are related to cast speed:

Jewel Type	Icon	Name	Effect
Eternal		Dialla's Wit	15% increased Cast Speed

Cluster Jewel passive skills

The following Cluster Jewel passive skills are related to cast speed:

Ascendancy passive skills

These passive skills from Ascendancy trees grant increased cast speed.