How are the FIDE ratings calculated and what do they reflect about a player? - Quora

Elo rating system - Wikipedia

is rating roughly equal to an elo/fide rating? - Chess Forums

unrated player -initial rating - Chess Forums

analysis - Chess rating calculating algorithm - Mathematics Stack

Rating List Adjustments

Fide Chess Rating Calculator - Apps on Google Play

GitHub - piongu/FIDE-rating-change-calculator: program calculates rating change (ELO system)

I created a model to estimate your FIDE rating based on your online rating, this GIF shows my process (website/more info in comments) : r/chess

What is happening to the ECF grading system? The new 4-digit elo ratings explained - Battersea Chess Club

Alireza's INSANE performance rating in the European Team Championship!!! : r/chess