Educational Purpose
Elo Chess Rating Calculator is provided for educational and informational purposes only. While we use official federation formulas, our calculations are estimates and do not guarantee official tournament results.
Terms of Use
Fair Use
You may use these calculators for personal or club use. Scraping, botting, or attempting to cause denial of service is prohibited.
No Warranty
The service is provided 'as is'. We offer no warranties regarding tournament results or official rating changes by FIDE, US Chess, or other federations.
Changes
We reserve the right to modify these terms or calculator methodologies at any time without notice.