convert USCF to chess.com blitz

My ELO used to be 1100 but my blitz was 800. Now my ELO is 1400 but blitz is 1450. I would say there is no reliable conversion.

Chess.com is overrated by 100 points (take blitz ratings only).

So if someone say 1600 here, in real life 15 hundred FIDE (of course it's roughly, but still...)

So minus 100 points your real rating.

For titled players I've notice, it's 200 points gap, their FIDE 200 points lower. Take titled tuesday and compare as an example.

People keep saying that but that's not what I see. I don't think online chess is a reliable measure of a player's skill. If you have a high FIDE rating you will probably not be in the bottom ten or twenty percent of people on chesscom but that's the most that can be said. 

this is complete BS, some people are just way better in either longer or shorter time controls. 

My blitz (and bullet) rating is way lower than my FIDE or national rating.

I'm 1550 FIDE, yet my best blitz rating here is barely over 1400.

There is no reliable conversion. Blitz and classical time controls are different animals. Some people are good at one, some the other, and some both. I'm way weaker at blitz than at regular time controls.

This.

There's no conversion formula.

But it should be obvious that with enough data we could make reliable predictions.

From what I've seen Chess.com +/- 200 rating points will represent most people.

Even if we accept this statement as true, it has so little predictive power as to be worthless. A 1200 is vastly different in strength than a 1600.

This is just the general form though. When applying it to individuals you can narrow it down.

For example a person who has never played OTB, rarely plays long time controls, and plays blitz every day will have OTB strictly less than chess.com blitz.

An older person who rarely plays online and mostly plays long time controls and OTB will have a chess.com blitz strictly less than OTB.

For someone who plays both types of chess often no conversion is necessary because they'll have reliable ratings in both.

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Maybe you will say 1400 to 1600 is a wide range too. Well, ok, but if a person really wants to know how strong they are they should just go play. Chess.com blitz can give you a rough estimate but that's it.

Also, of course, the further away from the norm you get, the less likely it would be.

So a formula that makes use of statistics wouldn't say +/- 200 is all equally likely. It would spit out something like: For individual X chess.com blitz = OTB +80 with a 95% confidence.

But you'd need a lot of data, which is both costly and problematic... because if you polled 1000 people probably 90% of them will not give an accurate response.

Go to random.org and pick a random number 1-10. let this number be r. Your USCF is your blitz - 500 + 100r

naw im 1700+ in blitz and im 1300 elo

if this,maybe

Then you can't afford a USCF membership and therefore don't need your rating.