You cant compare OTB 2 hour each game and online 5 min each game / 3 days each move. There is a huge difference, you can be good in one thing, and bad at another. You cant find out your FIDE rating, if you do not play FIDE rated tournements and get a FIDE rating.
chess.com rating vs. real FIDE rating
To get a FIDE estimate, just divide your chess.com rating by zero
This produces +oo (positive infinity).

I know how to get FIDE rating, so I asked people who have one to post theirs and their chess.com rating so we could compare.
I know it's not the same, I was just wondering
maybe i expressed myself wrong, not FIDE rating, national chess rating then

My national rating in New Zealand is about 1915 elo, and my national rating in Korea is about 2015 elo.
My rating on chess.com is usually in the 1900-2000 range, so pretty close to my OTB.
I should mention that I only play 1 min to 5 min games on chess.com, whereas I play classical speeds OTB.
It is much easier to beat a higher-rated opponent at blitz, because of the large number of mistakes. In a typical online session of 10 games or so, I often beat players rated 2200-2300 and lose to players rated 1600-1700.

My chess.com rating is 1516. My USCF is 1249 Regular (provisional after just 4 games).
I don't have a FIDE rating though. Sorry!

My national Elo rating (Austria) is 1358. My chess.com standard rating (where I play mostly 15-30 min. games) is about the same. My blitz and bullet ratings are much worse (in the 1100s) since I seem to be absolutely unable to play fast without blundering pieces.

Great question. I was wondering the same thing. I imagine that chess.com is harder and would probably yeild a lower rating because there are more people to play on it from a wider area. If you are a club or tornament player you are limited to people local to you. Here it's world wide and free evey day. In club and tornament play you have to pay and actually show up physically so many people who are probably pretty good at chess or at least very interested in it can't do that but they can show up on the internet.
I played in a club for about a month once but due to work responsibilities and family responsibilities and such I wasn't able to keep going. I never even got past my provisional rating. So chess.com is perfect for me.

it'd be cool if when you played someone online, you could see their *real* ratings (elo/FIDE/uscf/etc.) in addition to their chess.com rating
as for the question, i'm sure there is some general relation between the two... if you took all the players with both a *real* rating and a chess.com rating, the average has to be higher/lower
my best guess is the *real* ratings are lower than the chess.com ratings, since i would think people in the *real* chess scene might be a bit more serious about things, i mean w/ chess.com it's super easy to set up an account in like 2 minutes. just a guess tho-- Osage makes a good point, too

There is the option to include your OTB rating in your chess.com profile - however you have to select your chess federation and there's only FIDE, USCF and BCF available. Maybe the option "other national ratings" or similar should be included.
Interesting topic. Some of here argue that you cannot compare two ratings, but author is simply asking what is your chess rating and what is your FIDE rating and nothing else.

It is interesting too , that site starts all new members on average ELO rating of 1200. I believe this is still done when new member declares a considerably higher rating they have already attained.Result is very unfair to members of my humble rating range who find their ratings often savaged by new members who are actually much more skilfull than average.Might it not be fairer to pitch newbies in at higher level and let levels work down eventually , rather than work up eventually?.This would still be a burden but it would transfer load to people more able to cope with it and thus better meet declared site aim of Fair Play Policy.

To get a FIDE estimate, just divide your chess.com rating by zero
This produces +oo (positive infinity).
Zero is positive?
I was wondering what is the ratio between those two ratings, so if you could post ur chess.com rating and real FIDE rating (if you have one) it would be very much appretiated ;).