What is cm/360 and why does it matter?
cm/360 is how many centimeters you need to move your mouse across the desk to turn 360 degrees in the game. Because it is a physical measure, it does not depend on the game: Match the cm/360 in two games and the same hand movement gives the same turn, so your muscle memory stays intact. That is exactly what a sensitivity converter does: It calculates the cm/360 in your source game and finds the setting that gives the same value in the target game.
This converter gives you the result for free in one click from your DPI and sensitivity. Conversion to PUBG is ready now, and more games are on the way.