General Gaming Calculators
Calculators for common video game mechanics, including social deduction game odds, kill/death ratios, and competitive ranking systems.
Calculators & Tools
KD Calculator
The KD Calculator works out your kill/death ratio, and separately your KDA ratio when assists are counted. It correctly combines kills and deaths across multiple matches into one true ratio, rather than averaging each match's individual ratio, and it can work backward to show how many kills you need to reach a target ratio. Use it to check your stats the way ranking systems actually calculate them.
Impostor Odds Calculator
The Impostor Odds Calculator works out your exact probability of being assigned Impostor in a single Among Us lobby from the player count and impostor count, and separately calculates the binomial probability of landing a given number of impostor rounds across several games. It supports exact, at-least, and at-most probability modes for the multi-game calculation. Use it to see that each game's odds are completely independent of your recent run of luck.
Elo Rating Calculator
The Elo Rating Calculator works out your expected score and rating change from a single game against a known opponent rating, using the standard chess and competitive gaming Elo formula. Its sequence mode tracks your rating game by game across a whole series, since each game's expected score depends on your rating at that point, not your starting rating. Use it to see why a 200-point rating gap isn't twice as significant as a 100-point gap.