If you’re fond of playing chess, you’re probably interested in evaluating your skills. Since chess was invented, several rating systems have been developed and used by many chess masters to assess each player’s strength. These ratings will also help you estimate the winner in an upcoming tournament.

Chess ratings are used to analyze and rank each player’s performance, so you can learn more about your strengths and weaknesses. According to these ratings, players are ranked from novice to expert. So, if you’re an avid chess player, read this article to learn about the top 5 best chess rating calculators.

## What is a Chess Rating?

Chess ratings are performance evaluation methods that analyze every player’s performance and allow chess players to compare themselves to peers and chess grandmasters. Moreover, they can help determine players’ ratings after a tournament or competition.

Different chess rating methods are available, but they all have several things in common. The rating calculations are based on game results.

So, players’ ratings will increase, and they will gain more points if they win more games. Their ratings will decrease, and they will lose points if they lose games. However, the rating calculation method differs from one method to another.

Chess players usually have a rating that can be as low as 400 or as high as 2000 and above. As of 2022, __Magnus Carlsen__ holds the title of the world’s champion with a score of 2864.

Winning and losing certain games can have a bigger effect on your rating. For example, if you win a game with a low-rated player, your gains won’t be as much, which also applies to losses. As for draws, the opposite happens. So, your rating will increase significantly if you draw a high-rated player because this means that you’re skilled.

## Top Best Chess Rating Calculators

Chess rating calculators calculate each player’s ratings based on points. These points are won or lost when the player plays games with other players.

The Elo system, invented by Arpad Elo, is currently the most widely used chess rating calculator. It’s currently used by the __Internation Chess Federation__ and several chess websites that allow players to monitor their progress. Nevertheless, other calculation systems are also available for players and their mentors.

### Elo Rating System Calculator

This system evaluates performance in several zero-sum games, including chess. It’s also used to calculate points in several sports like baseball, basketball, tennis, and American football.

After every game, performance is evaluated based on the outcome, as the winner takes points from the loser. And the difference between the ratings of the two players determines how many points will be won or lost. So, for example, a high-rated player will only gain a few points after winning a game with a low-rated player.

According to this system, players are rated from novice players who are below 1200 points to super grandmasters with a rating of more than 2700. The performance rating is calculated according to this formula.

Total opponent’s rating + 400 X (Wins – Losses) / Games

The rating of each opponent is calculated according to this formula.

R(1) = 10^{r(1)}/400 and R(2) = 10^{r(2)}/400

E(1) = R(1) / (R(1) + R(2)) and E(2) = R(2) / (R(1) + R(2))

When the match is played, we will have new values.

S1 = 0 if the player wins, 0.5 if there’s a tie, or 1 if the first player wins. The same applies to S2.

Finally, the score is calculated with the K factor set to 32 according to this formula.

r'(1) = r(1) + K * (S(1) – E(1)) and the same applies to the second player.

### USCF Chess Rating System Calculator

The USCF, or United States Chess Federation, represents the US in the FIDE competitions. It also grants national awards to chess players based on a special system that ranks players based on their performance.

According to this system, chess players are ranked from Class J players with a rating between 100 and 200 points up to senior masters with a rating of 2400 and up.

The rating calculator uses a __special software program__. The calculator uses specific criteria, like the number of previous games played, current rating, performance, bonus, and K score. The K score is lower in the case of high-rated players.

### German Chess Rating Ingo System Calculator

The Ingo system was invented in 1948, but chess players and masters stopped using it in 1992. After 1992, the German Chess Federation replaced it with the Deutsche Wertungszahl system, which uses the Elo method to calculate performance.

Yet, this system still holds its status as one of the most popular and influential rating systems because it was the base for other calculation systems. However, it’s different from other rating systems because the rating is higher if the player has fewer points.

### UCSF Chess Rating Harkness System Calculator

This short-lived system was invented by the Scottish chess player Kenneth Harkness and used until 1960. It was a simple system, but the Elo system later replaced it.

According to this system, a player would get the average rating if they scored 50%. The score will increase by 10 points per percentage for every percentage above 50%. The opposite will happen when the player scores below 50%, losing 10 points per percentage for every percentage below 50%.

### Glicko Chess Rating System Calculator

This modified Elo-based system is currently used as the official Australian chess rating system. Some online websites also use this calculator.

This is considered a complicated computer-based system, so it’s more advanced with accurate results. Most chess experts consider this an improvement from the paper-based Elo system.

## Wrap Up

There are various chess rating calculators available to avid and novice chess players. Some of them are no longer used but still represent a crucial part of the game’s history.

The most popular system is the Elo calculator, which calculates the player’s rating based on the result of current and previous games. These calculators are used to compare players and determine their rankings in international and national tournaments.