Leisure & Fun
Chess Elo Rating Calculator
Standard Elo update using expected score from the rating gap and a chosen K-factor.
Result will appear here
Formula
new = current + K × (result − 1 ÷ (1 + 10^((opp − current) ÷ 400)))
Leisure & Fun
Standard Elo update using expected score from the rating gap and a chosen K-factor.
Result will appear here
new = current + K × (result − 1 ÷ (1 + 10^((opp − current) ÷ 400)))