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Free calculators used by thousands of players every month
ELO Rating Converter
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Convert ratings between Chess.com, Lichess, FIDE and more. See how your rating translates across platforms.
Percentile Calculator
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Find out where you rank among chess players. Are you in the top 10%? Top 1%? Let's find out.
Chess IQ Calculator
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How smart is your chess rating? A fun (and totally unscientific) way to flex your rating.
Latest from ChessGrandMonkey
Sigeman 2026 Round 3: Five-Way Tie as Erigaisi and Erdogmus Score Wins
Arjun Erigaisi and Yagiz Kaan Erdogmus both scored wins to join the leaders at TePe Sigeman Chess 2026, creating a remarkable five-way tie for first at 2/3. The marquee matchup between Carlsen and Abdusattorov ended in a draw after the world No. 1 couldn't convert a small edge with the white pieces.
Sigeman 2026 Round 2: Carlsen Beats Former Second Grandelius With the Benoni
Magnus Carlsen scored the only decisive result in Round 2, beating Nils Grandelius with Black in a Benoni Defense to join Abdusattorov and Woodward in a three-way tie for first at TePe Sigeman Chess 2026. The other three games were drawn, including a wild Abdusattorov-Woodward battle where the evaluation swung from +5 to 0 multiple times.
Webster University Kills Its Chess Dynasty: 14 Years, 90 Titles, Done
Webster University has terminated the Susan Polgar Institute for Chess Excellence, ending one of the most decorated programs in US collegiate chess history. Head Coach GM Liem Le is out. Founder Susan Polgar says she was never consulted. The program won 2 world championships, 3 Olympiad golds, and 90+ national titles over 14 years.
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