Esports KDA Ratio Calculator
Turn your kills, deaths and assists into a KDA ratio and a straight K/D — the core performance stats in MOBAs and shooters.
How it works
KDA = (kills + assists) ÷ deaths · K/D = kills ÷ deaths · With zero deaths, deaths are treated as a “perfect” game
KDA is the headline efficiency stat in team games like League of Legends, Dota and many shooters: it rewards both securing kills and helping teammates (assists) while penalising dying. A KDA of 3.0 means you produced three kills or assists for every death, which is generally a strong game. When you finish with no deaths the ratio is undefined mathematically, so it is conventionally reported as a “perfect” game equal to kills plus assists rather than infinity.
Worked example
A scoreline of 8 kills, 5 deaths and 12 assists gives KDA = (8 + 12) ÷ 5 = 4.0, and a K/D of 8 ÷ 5 = 1.6.
Frequently asked questions
What counts as a good KDA?
It varies by role and game, but as a rough guide anything above 3.0 is a good game and above 4–5 is excellent. Supports often post high KDAs from assists, while aggressive carries live with more deaths.
Why include assists?
Team games reward contribution, not just last hits. Assists credit you for helping secure a kill, so KDA reflects overall involvement better than raw kills or K/D alone.
What happens with zero deaths?
Dividing by zero is undefined, so a deathless game is shown as a “perfect” KDA equal to kills plus assists — the convention most game clients use rather than displaying infinity.
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This calculator is for educational purposes. Double-check important results before acting on them.