What type of rating? Turn based rating is about 200 points higher than USCF rating on average, but some players treat online chess as bullet; others treat it like a real serious game. So there isn't a good way to compare them.
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OK, but how could I join FIDE assotiation? What should I do to be more famous? And could my rating in Chess.com become a real rating in FIDE?
Jan 1, 2016
0
#4
You don't join, that's not how it works. You have to play in a FIDE rated tournament.
If your life just won't be complete without a FIDE membership, you can join and even qualify for an amateur master title. Sure any real chess player will laugh at you, but you'll have an official card that says you're a master.
https://arena.myfide.net/ratings-and-titles/titles
How does Chess.com ratings stand up to USCF ratings?