eDPI & DPI
eDPI (“effective DPI”) is simply DPI × in-game sensitivity. It collapses two settings into one number so two players can compare aim speed without caring how they split it between hardware and software.
eDPI = DPI × sensitivity — e.g. 1600 × 0.55 = 880, the same as 800 × 1.1.When eDPI is useful
- Comparing two players in the same game at a glance.
- Reproducing a setting when you don't know someone's DPI but trust their eDPI.
When eDPI lies
- Across games. eDPI ignores yaw, so an 800 eDPI in CS2 and in Overwatch 2 are completely different arcs. Use cm/360° across games, always.
- At low DPI. Below ~400 some sensors interpolate, so two "equal" eDPIs can feel different. Prefer 800–1600 native DPI.
So which do I quote?
Within one game, eDPI is fine shorthand. The moment you mention more than one game, switch to cm/360°. The converter shows both columns so you don't have to choose.