Estimate a game result
Enter your rating, your opponent’s rating and a win, draw or loss. The app then calculates an estimated rating gain or loss using an expected-score formula.
Projects
FIDE Rating Calculator
Estimate chess rating changes and initial ratings with a focused Android calculator.
Chess rating utility
The product in context
FIDE Rating Calculator is an independent Android utility for estimating rating changes after a game and an initial rating for an unrated player. Its focused flow puts the inputs and estimated result on one screen.
Choose the K-factor
The calculator provides K-factor choices of 10, 20 and 40, making the selected assumption visible before a result is calculated.
Estimate an initial rating
For an unrated player, the app accepts opponents’ average rating, total score and number of games to produce an initial estimate.
Product visuals
Screens from the published app
Explore the source
See the product firsthand.
The app is an independent calculator and is not affiliated with or endorsed by FIDE.