Converter / About
About Chess Rating HQ
Chess Rating HQ does one thing well: it converts a chess rating between Chess.com and Lichess and tells you where you stand among active players. No accounts, no clutter, no cost.
What this site is
This is a single, focused tool. You type your rating, pick a platform and a time control, and it returns the equivalent rating on the other platform along with your percentile. It loads fast, it is free to use, and it keeps your input private. That is the whole promise, and we would rather do that one job properly than bury it under features nobody asked for.
Why it exists
Most rating conversions floating around the web are built on a formula someone locked in years ago. Rating pools are living populations, though. They shift as new players arrive and old ones drift, so a fixed formula quietly goes stale. We take a different approach: we recompute from fresh platform data every month, show a confidence range instead of a single false-precise number, and publish exactly how we do it. If you want to check our workings, the methodology page lays out the data and the steps.
Who runs this site
Chess Rating HQ is built and maintained by Nathan Hays, who makes a family of free, single-purpose web tools. He has no affiliation with Chess.com, Lichess, or any chess federation, and the site sells nothing; its only job is to compute honest numbers from fresh data and show its workings. Questions and corrections are welcome at [email protected].
Private by design
Everything happens in your browser. The rating you type is used only on your own device to look up baked-in tables, and it is never uploaded, stored, or seen by us. There is nothing to sign up for and nothing to log in to. The full details are on the privacy page.