# Chess Elo Calculator

> Chess Elo calculator: predict your new rating after games using Elo, expected score, and K-factor, or find performance rating. Free, private, no signup.

- **Canonical URL:** https://boringtoolskit.com/chess-elo-calculator/
- **Category:** Gaming
- **Evidence level:** catalogue
- **Reviewed:** July 26, 2026
- **Last verified:** 2026-10-12
- **Privacy:** Inputs and results stay in this browser unless the page clearly labels an external request.

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