Chess.com VS USCF Rating

How different are the ratings between USCF and chess.com? I see lots of U1600 here playing U2000 USCF level. How reliable are the ratings on here? Does a +100 elo increase here mean I will do +100 better in USCF? I understand nothing is 100% accurate, just looking for an approximate for self development purposes. Thank you!

P.S Feel free to post your ratings in both categories as a nice example

There have been threads in the past collecting data on this and looking for correlations. I'm sure you could find using the search bar (I'm too lazy to find them right now). There is definitely some correlation, but obviously online speed chess is quite a bit different than OTB longer time controls, so there's no way to get to precise of a prediction of what your OTB rating would be.

I can say for certain, however, that no U1600 here is 2000 uscf. 1600 chess.com blitz is probably like 1100-1500 uscf.

Here's an example of my ratings:

1060 uscf (from a decade ago in elementary school, I'd probably be a few hundred points higher if I played OTB again

~2600 bullet (playing 10s bullet; 2000 in 1min bullet)

Wow, 2600 is amazing (and kind of funny with 10s blitz xD). I'm still new so I don't know how to quite use chess.com and the forums to it's full potential. I will give searching a try.

Personally I'm 1963 USCF, but am having difficulty with U1600 players in the 15|10 games. Maybe I'm just not used to playing online?

Yeah you're probably just not used to playing online. Since I play online almost exclusively, on the rare occasion that I do play OTB I have a lot of trouble calculating and visualizing what's going on, since I can't easily make the transition from the 2D to 3D board. You're probably experiencing this, just in reverse.

There are other factors that create unusual leveling effects in 15/10 games.

I switched my chess theme to isometric, so far feels a lot more "real", but not that big of a change

My blitz rating tracks my USCF pretty closely. Like my USCF is around 1900 and my chess.com blitz goes currently between 1900 and about 1950. I do occasionally see NM or FM title players with around 1900 blitz ratings though. My rapid rating is a bit lower on the site, more like 1800-1850 I think. I do find that rating pool much more difficult, for whatever reason.

Try playing in longer time controls.

True, but I don't think its too big of a difference

I'd say ratings here are either a bit inflated, about equal, or totally useless, with regard to comparison to official FIDE ratings.

The totally useless ratings: 10-30 second bullet, tactics trainer, lessons, maybe some of the variants, but not chess960.

Last time I played OTB was 3 years ago though...

On my old account, When I was 2000+ like 3 years ago, my blitz here was 1900+, rapid was inflated (due to purposeful inflation by chess.com, so i won't comment on it), and bullet was 2100. My daily was about 1900. 

(EDIT): Basically, you should probably draw no conclusions about your rating on chess.com compared to your USCF. Now that I think of it, there's just a correlation, but a pretty bad one linearly, and you should just care about your real rating, not online ones.

Interesting. So far I'm imagining a plus/minus range of 100 tops

Hah, I'm over 1500 OTB and would be hard pressed to break 1600 blitz here. I know at least one other OTB player, with a stable rating, that is also around 1600 and 1500-ish blitz here. I've also seen 1400 level players getting 2000 blitz here so it isn't anywhere near being simple (though it is possible maybe me and the guy I personally know are outliers).

If I had the time I could come up with a lot of other examples.

More like +/- 300, depending on a number of factors.

the focus should be on the time control the person in question plays most here then finding the mean between that and his real rating possibly.

Hmm, so when I study, how would I test out the things Ive learned and how would I know if I'm improving if ratings are not accurate?

Jeremy Silman says the ratings at chess.com are 200-300 higher than USCF OTB equivalents. I've coached high school kids and those with USCF regular ratings of 1200 or more had a MUCH deeper understanding of chess than the games I see by 1200 players here.  I can't speak for the higher ratings.

Because so many people like and trust Jeremy Silman, they believe even the nonsense that comes out of his keyboard. My OTB and blitz are currently very close, but they have varied by 250-300 points both ways in the past few years. I play thousands of blitz games every year and play in 4-6 weekend OTB events. Lately, I've been playing more on Thursday evenings at my local chess club, too.

Chess.com standard ratings are good predictors of USCF ratings except at the extremes.