What Is eDPI?
eDPI (effective DPI) is the standard metric for comparing mouse aim across different DPI/sensitivity settings and different games. The formula is simple: eDPI = mouse DPI x in-game sensitivity. A player at 800 DPI / 0.5 sens has the same effective aim as one at 400 DPI / 1.0 sens - both equal 400 eDPI. If you are not certain what DPI your mouse really runs, measure your mouse DPI first — labeled and true DPI often differ, which throws the whole eDPI number off.
Pro CS2 / Valorant players cluster between 200-400 eDPI. Pro Apex players cluster 800-1600 eDPI. Knowing your eDPI lets you copy a pro setting reliably or compare yourself meaningfully to benchmarks.
Changing DPI is where most mistakes happen. Before you move from 800 DPI to 1600 DPI or back down to 400 DPI, use the step-by-step guide on changing mouse DPI without losing aim so your eDPI stays locked.


