Not sure what the conversion rate is, but chess.com ratings are certainly too high. In real life, I'm around 2050 (or I was back when I was active).
Not sure that a tactics rating is really that significant. In tactics problems, you KNOW there's a combination in front of you. Not so in actual games. I've played people with chess.com tactics ratings of 2600 or so, and beaten them in 20 moves.
I have a USCF 1645 rating but my tactics rating on chess.com is 2200. I know tactics is probably less than 99% of chess but I'm hoping my superior tactics will help me get out of the 1600 limbo I've been in for a decade. So curious, what's the inflation, per se, like...is 2200 rating in tactics make me a master tactician?