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KDA means kills, deaths, and assists. In many games and stat trackers, it also refers to a ratio calculated as (kills + assists) ÷ deaths. The exact display rules depend on the game or tracker, so a KDA is most useful when you know its formula and whether it covers one match or a longer stretch of play.
What do kills, deaths, and assists mean?
- Kills count opponents a player eliminates, according to that game’s rules.
- Deaths count times the player is eliminated.
- Assists recognize a player’s contribution to a teammate’s elimination. Each game decides what actions qualify.
The abbreviation is common in team-oriented games and esports, but the underlying stat rules are game-specific. Axis’s video-game glossary expands KDA as kills, deaths, and assists and describes assists in team play.
How is KDA calculated?
A common ratio adds kills and assists, then divides the total by deaths:
KDA = (kills + assists) ÷ deaths
For example, with 10 kills, 3 deaths, and 5 assists, the calculation is (10 + 5) ÷ 3 = 5. This is an arithmetic illustration of the common formula, not an official display rule for any particular game.
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OP.GG documents this formula for its KDA explanation. Its average KDA calculation uses total kills plus total assists divided by total deaths across the relevant stats. See OP.GG’s KDA calculation explained, updated December 31, 2025.
What happens when deaths are zero?
Division by zero is undefined, so a zero-death performance cannot produce an ordinary numeric result from this formula. Trackers may handle that case differently. OP.GG says it displays “Perfect KDA” when deaths are zero; that is OP.GG’s convention, not a universal standard.
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What does a KDA tell you—and what does it leave out?
KDA summarizes kill-related activity: eliminations, deaths, and credited assistance. It does not, by itself, establish a player’s overall skill or capture every contribution, such as work toward objectives. Research on team-based online games treats kills, deaths, assists, current-match KDA, and cumulative session KDA as distinct performance features, rather than treating one KDA figure as a complete account of play. See “Individual performance in team-based online games.”
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How to compare KDA values fairly
Before deciding that one KDA is better than another, check whether the values use the same basis:
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- Game and stat rules: Games can differ in what counts as a kill, death, or assist.
- Formula: Confirm whether the figure is a ratio and how zero deaths are represented.
- Scope: A single-match KDA and an average or cumulative figure across multiple matches are not the same measure.
- Context: KDA covers kill-related actions, not every objective or contribution to the team.
These distinctions matter in esports as well as casual play: the letters have a familiar meaning, but a number is comparable only when its rules and scope are clear.
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