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FIDE Rating Calculator for Rated Events

FIDE and US Chess are different scales. This page estimates a FIDE change, then shows how US Chess converts that FIDE rating when it initializes an unrated player.

K is 40 until 30 games, and also for players under 18 who are still under 2300. It is 20 for an established player under 2400, and 10 once 2400 has been reached. Confirm the current FIDE Rating Regulations before a title application. This is not a FIDE norm calculator for IM or GM titles.

The US Chess event estimate lives on the rating estimator.