Official chess ratings vs chess.com

I have been wondering, lots of people play chess here, its a chess site.
Some of you have official ratings masters, grand masters etc.

How does chess.com's rating system on live and online chess compare
To your official chess rating. For example do you have a much higher official rating or is it otherways

If your real good, does the rating reflect it or not, does it still say something.
Or because of so many people play and have average levels is the ranking out of balance compared to you high ratings. Is it easy to find comparable members here by high ratings ?

Can we say the chess.com rating equals official chess ratings ?

I am curious about this.