Rating Elo Pós Partida
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
Elo
About this calculator
The Elo rating post-game calculator is a useful tool for chess players who want to calculate their new Elo rating after a game.
It uses the formula R' = R + K·(S − E), where R is the current rating, K is the arbitration factor constant, S is the result of the game (1 for win, 0.5 for draw, 0 for loss) and E is the expected result of the game.
This calculator is especially useful for players who want to track their progress and adjust their strategy according to the game results.
It's also important to remember that the Elo rating is an estimate of a player's skill level and can vary depending on the rating system used.
Frequently asked questions
What is the Elo rating?
The Elo rating is a measure of a chess player's skill level. It is used to evaluate a player's strength in relation to other players.
How do I use this calculator?
Just enter your current rating, the game result and the expected result. The calculator will calculate your new Elo rating.
Why is my Elo rating varying?
The Elo rating can vary depending on the rating system used and the game results. Also, remember that the Elo rating is an estimate of a player's skill level.
Is the Elo rating important?
Yes, the Elo rating is important as it helps to evaluate a player's strength in relation to other players and to monitor progress.
Are there any precautions when using this calculator?
Yes, please enter accurate information about the game result and the expected result.