Elo Rating Calculator

Calculate new Elo rating after a chess or game match. See expected score and upset probability.

Game Result

New Rating

1520

Rating Change

+20

Details

Expected Score0.3599
Win Probability36.0%
Upset Probability64.0%

Use the Elo Rating Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.

Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.