Calculate Your New Rating

Enter your current rating and tournament results to calculate your expected new rating based on FIDE/CHC rating system.

About FIDE/CHC Rating System

How the calculation works:

• New Rating = Old Rating + K-Factor × (Actual Score - Expected Score)
• Expected Score is calculated using the formula: 1 / (1 + 10^((Opponent Rating - Your Rating) / 400))
• K-Factor varies based on age and rating level
• Win = 1 point, Draw = 0.5 points, Loss = 0 points