I created this tool to help you quickly estimate your FIDE rating during/after a tournament. I used the formulas found in the following official specifications, so the accuracy of the computations is guaranteed.

• Final Rating: FIDE Rating Regulations – Section 8.3 – Jan 2024
• Performance Rating: FIDE Title Regulations – Section 1.4.8 – Jan 2024

How to Use the Rating Estimator

1. First, select the # of games you played and your current rating. Then select your K-value.
2. Lastly, input your opponents’ ratings (or an ‘x’ or ‘X’ if you played an unrated player OR received a bye/forfeit in that round) & select if you won, drew, or lost.
3. Bam! That simple!

See this image for an example of filling out the form fields. NOTE: ENTER YOUR K-VALUE.

Feature Comparison

FIDE has already published a rating calculator. Why use ours?

The competition isn’t even close. Chess Intellect’s rating calculator implements the following features.

• Calculates total rating change over multiple rounds
• Calculates official performance rating
• Automatically saves user input when refreshing the browser
• Share the calculation easily from the URL without needing to re-enter every value
• Calculate % rating change
• Display helpful charts that help you understand your performance in the tournament

Please Reach Out

Please reach out to us if you have any suggestions or feedback! You can email us here or use the chatbox to the right.

Leave us 5 ⭐ and a comment if it helped you :).