[WTFBrandon]

http://lolcave.com/ec/

the site to ESTIMATE what your ranked elo SHOULD be by your normals win/loss can be calculated here.
This is a ROUGH estimate btw, this takes and subtracts from the first wins in ranked too for those who always seem to bring that up.

I've won 616, and lost 514 so my elo WOULD be 1854 in ranked. Which actually sounds decently accurate. If not, my elo would actually be higher since I won my first 6 ranked games in a row.