Chess Calculators
Free chess calculators.
ELO rating change, performance rating, tournament prize distribution.
Chess ELO Rating Change Calculator
Calculate your chess ELO rating change after a game or match. Supports standard K-factors for beginners, club, and elite players.
Chess Material Value Calculator
Calculate the material balance in any chess position. See who is ahead in material and by how much using standard piece values.
Chess Performance Rating Calculator
Calculate your chess performance rating for a tournament based on your score and opponents ratings. Used to award norms.
Chess Tournament Prize Split Calculator
Calculate prize money distribution when players tie for places in a chess tournament. Uses the standard prize-sharing method.