user4230: I have been playing on lichess for a while and it strikes me how low ratings are compared to other rating systems. This is not to say that players are weaker, I have quite the opposite feeling, but ratings are Glicko, rather than Elo, and this the number of players is reasonably low, so this prevents inflation but still...
I am wondering what a typical low-2000s FIDE player's rating is on lichess. (I assume that higher rated players don't play online chess?) Thanks!

user9231: They are roughly the same, but different per type (speed v correspondence). This article from chess.com was really informative. I'm guessing the two sites are relatively comparable: https://www.chess.com/forum/view/general/fide-ratings-vs-chesscom-ratings-explored

user13817: Of course, lichess is extremely inflated. Just look at Penguingim1's bullet rating; it is like 3100. In fact, it was almost 3200 at one point. Yet, in real life, Penguingim1 is only rated 2450 or so USCF (which is higher than FIDE).
There isn't really a good or direct translation, but perhaps you can estimate. I would say a rough conversion factor between lichess and FIDE would be like 1 FIDE unit = 1.19 classical lichess units. For example, I know one guy who is 1800 FIDE but 2150 on lichess classical. If you multiply 1800 by 1.2, you get 2160; very darn close! 
P.s. I agree that higher rated chess players don't play much chess online. Just look at the player leaderboards on lichess; there isn't 1 single GM in the top 10s for lichess, but every single player top 100 FIDE is GM titled.

user7066: IMO, Lichess ratings are a little bit inflated. My rating at lichess topped at ~1750 while my FIDE rating is ~1500. In comparison , chess.com is a little bit less inflated. My Standard (30 min) there is ~1600 which is about the same for the top player I could beat at my level.

user4424: I do agree that ratings seem a bit lower on lichess than on other websites, and actually I find this system much more stable. I am just over 2000 on FIDE elo and about the same on lichess (~2100 classical, ~2000 bullet). I have to say that it is the only place where I got a ranking reasonably near to my real ranking.

user17341: The rating system used by Lichess is called Glicko and is different from the FIDE one, called Elo system.
This post on Lichess forum gives some insights about the topic:
https://lichess.org/qa/6/how-does-the-rating-system-work-on-here
The most important thing in the answer, in my point of view is this last paragraph:

It's best to think of ratings as "relative" figures (as opposed to "absolute" figures). By this I mean: within a pool of players, their relative differences in ratings will help you estimate who will win/draw/loss, and how often. Saying "I have X rating" means nothing unless there are other players to compare that rating to.


user9289: I am 2300-2450 on lichess blitz, while my FIDE rating is 2300-2350.
There is a correlation but there is a large body of players on lichess that are not FIDE rated.

user2785: I went through the list of LiChess classical top 200 players and collected the FIDE ratings of LiChess classical ratings of anyone who I could verify on FIDE's website as actually having a FIDE rating:
LiChess FIDE    LiChess username    Name

2585    2265    ClassyPlays         Thibault Dudognon [FM]
2389    1869    nikkon2006          Nikita Konstantinov 
2373    2274    PchelkinVK          Andrey Ermolaev [CM]
2357    1780    LeProfessionnel     Xavier Bohaer   
2329    1963    Callmoon            Lina Nassr [WIM]
2299    2249    Peristeria          Marcus Schmuecker   
2290    2214    Crocodilu1976       Adrian Stanca   
2278    1899    TonoyanRob7         Robert Tonoyan  
2271    1900    CamelClutcher       Daniel Herman   
2269    1985    Chess-For-All       Alexey Pugach   
2242    2242    weichi              Eugeny Pankin   
2241    2208    kirillgenius        Kirill Shcherbinin [CM]
2241    2247    Cizar               Srboljub Zaric  
2236    2065    pepellou            Jose Doval Gonzalez 
2235    2093    Suleymanov_Marat    Marat M. Suleimanov 
2232    2155    Son_Of_Caissa       Hrvoje Vlahov   
2228    2358    VadimCernov         Vadim Chernov [IM]
2221    2010    emiliooo            Emilio Profili  
2219    2274    Josip_buje          Josip Bulic [FM]
2214    1455    diarbovi            Diego Armando Bonilla Viamonte  
2206    1878    hebertvr            Hebert Valera   
2199    1958    MrsBlunderqueen     Jan Oltmanns    
2193    2215    aconeni             Ondrej Toman    
2193    2187    teddyhh             Julio Fernandes 
2187    2190    yichen              Yichen Han  
2181    2298    jolle23             Johan Hultin [FM]
2171    2270    Konnov_Oleg         Oleg Konnov [FM]
2164    2138    FrankDischinger     Dischinger Frank [FM]
2162    1754    moldscaien1357      Dimitrios Makridis  
2145    1898    shayanaghaie        Shahram Aghaei  

(I use the current FIDE rating, not the one listed on the LiChess profile; this affects 6 players.  One player had a FIDE profile page, but no rating: LiChess (2174); FIDE.)
We see some major differences in several cases, so we cannot expect a simple relationship between the two.  However, perhaps it's fair to conclude that a typical low-2000s FIDE player could likely reach a 2100+ LiChess classical rating.  However, I feel like it depends heavily on how seriously they play on LiChess.
Here's a plot of the above data, with a linear regression.  It's an incredibly weak correlation.


4230: <p>I have been playing on lichess for a while and it strikes me how low ratings are compared to other rating systems. This is not to say that players are weaker, I have quite the opposite feeling, but ratings are Glicko, rather than Elo, and this the number of players is reasonably low, so this prevents inflation but still...</p>

<p>I am wondering what a typical low-2000s FIDE player's rating is on lichess. (I assume that higher rated players don't play online chess?) Thanks!</p>
 9231: <p>They are roughly the same, but different per type (speed v correspondence). This article from chess.com was really informative. I'm guessing the two sites are relatively comparable: <a href="https://www.chess.com/forum/view/general/fide-ratings-vs-chesscom-ratings-explored" rel="nofollow">https://www.chess.com/forum/view/general/fide-ratings-vs-chesscom-ratings-explored</a></p>
 13817: <p>Of course, lichess is extremely inflated. Just look at Penguingim1's bullet rating; it is like 3100. In fact, it was almost 3200 at one point. Yet, in real life, Penguingim1 is only rated 2450 or so USCF (which is higher than FIDE).</p>

<p>There isn't really a good or direct translation, but perhaps you can estimate. I would say a rough conversion factor between lichess and FIDE would be like 1 FIDE unit = 1.19 classical lichess units. For example, I know one guy who is 1800 FIDE but 2150 on lichess classical. If you multiply 1800 by 1.2, you get 2160; very darn close! </p>

<p>P.s. I agree that higher rated chess players don't play much chess online. Just look at the player leaderboards on lichess; there isn't 1 single GM in the top 10s for lichess, but every single player top 100 FIDE is GM titled.</p>
 7066: <p>IMO, Lichess ratings are a little bit inflated. My rating at lichess topped at ~1750 while my FIDE rating is ~1500. In comparison , chess.com is a little bit less inflated. My Standard (30 min) there is ~1600 which is about the same for the top player I could beat at my level.</p>
 4424: <p>I do agree that ratings seem a bit lower on lichess than on other websites, and actually I find this system much more stable. I am just over 2000 on FIDE elo and about the same on lichess (~2100 classical, ~2000 bullet). I have to say that it is the only place where I got a ranking reasonably near to my real ranking.</p>
 17341: <p>The rating system used by Lichess is called Glicko and is different from the FIDE one, called Elo system.</p>

<p>This post on Lichess forum gives some insights about the topic:</p>

<p><a href="https://lichess.org/qa/6/how-does-the-rating-system-work-on-here" rel="noreferrer">https://lichess.org/qa/6/how-does-the-rating-system-work-on-here</a></p>

<p>The most important thing in the answer, in my point of view is this last paragraph:</p>

<blockquote>
  <p>It's best to think of ratings as "relative" figures (as opposed to "absolute" figures). By this I mean: within a pool of players, their relative differences in ratings will help you estimate who will win/draw/loss, and how often. Saying "I have X rating" means nothing unless there are other players to compare that rating to.</p>
</blockquote>
 9289: <p>I am 2300-2450 on lichess blitz, while my FIDE rating is 2300-2350.</p>

<p>There is a correlation but there is a large body of players on lichess that are not FIDE rated.</p>
 2785: <p>I went through the list of <a href="https://lichess.org/player/top/200/classical" rel="noreferrer">LiChess classical top 200 players</a> and collected the FIDE ratings of LiChess classical ratings of anyone who I could verify on FIDE's website as actually having a FIDE rating:</p>

<pre><code>LiChess FIDE    LiChess username    Name

2585    2265    ClassyPlays         Thibault Dudognon [FM]
2389    1869    nikkon2006          Nikita Konstantinov 
2373    2274    PchelkinVK          Andrey Ermolaev [CM]
2357    1780    LeProfessionnel     Xavier Bohaer   
2329    1963    Callmoon            Lina Nassr [WIM]
2299    2249    Peristeria          Marcus Schmuecker   
2290    2214    Crocodilu1976       Adrian Stanca   
2278    1899    TonoyanRob7         Robert Tonoyan  
2271    1900    CamelClutcher       Daniel Herman   
2269    1985    Chess-For-All       Alexey Pugach   
2242    2242    weichi              Eugeny Pankin   
2241    2208    kirillgenius        Kirill Shcherbinin [CM]
2241    2247    Cizar               Srboljub Zaric  
2236    2065    pepellou            Jose Doval Gonzalez 
2235    2093    Suleymanov_Marat    Marat M. Suleimanov 
2232    2155    Son_Of_Caissa       Hrvoje Vlahov   
2228    2358    VadimCernov         Vadim Chernov [IM]
2221    2010    emiliooo            Emilio Profili  
2219    2274    Josip_buje          Josip Bulic [FM]
2214    1455    diarbovi            Diego Armando Bonilla Viamonte  
2206    1878    hebertvr            Hebert Valera   
2199    1958    MrsBlunderqueen     Jan Oltmanns    
2193    2215    aconeni             Ondrej Toman    
2193    2187    teddyhh             Julio Fernandes 
2187    2190    yichen              Yichen Han  
2181    2298    jolle23             Johan Hultin [FM]
2171    2270    Konnov_Oleg         Oleg Konnov [FM]
2164    2138    FrankDischinger     Dischinger Frank [FM]
2162    1754    moldscaien1357      Dimitrios Makridis  
2145    1898    shayanaghaie        Shahram Aghaei  
</code></pre>

<p>(I use the current FIDE rating, not the one listed on the LiChess profile; this affects 6 players.  One player had a FIDE profile page, but no rating: <a href="https://lichess.org/@/AuaAua" rel="noreferrer">LiChess</a> (2174); <a href="http://ratings.fide.com/card.phtml?event=24628743" rel="noreferrer">FIDE</a>.)</p>

<p>We see some major differences in several cases, so we cannot expect a simple relationship between the two.  However, perhaps it's fair to conclude that a typical low-2000s FIDE player could likely reach a 2100+ LiChess classical rating.  However, I feel like it depends heavily on how seriously they play on LiChess.</p>

<p>Here's a plot of the above data, with a linear regression.  It's an incredibly weak correlation.</p>

<p><a href="https://i.stack.imgur.com/6eNG3.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/6eNG3.jpg" alt="enter image description here"></a></p>
