Rating Change Calculator (ELO / UKD)

Enter your rating, your opponent’s rating and the result to see your expected score and the estimated rating change from the game. The calculation uses FIDE’s standard formula.

Your rating

Opponent’s rating

Result

WonDrawLost

Development coefficient (K)

Expected score (0-1)0.40

Rating change24.0

Estimated new rating1474

Winter Open

This calculation is for information only. Under FIDE rules, rating differences above 400 are counted as 400. National (UKD) ratings follow the federation’s current regulations, where K-factors and special cases may differ. Ratings are published in official lists after tournaments.

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