What Is eDPI?

Understand the number behind in-game mouse sensitivity, with examples you can verify.

QUICK ANSWER

What does eDPI mean?

eDPI means effective dots per inch: mouse DPI multiplied by the in-game sensitivity multiplier. It gives a single number for comparing mouse settings within the same game. eDPI is not a universal measure of turn distance across different games.

Formula

eDPI = mouse DPI × in-game sensitivity

For example, 800 DPI at 0.32 Valorant sensitivity is 256 eDPI; 400 DPI at 0.64 is also 256 eDPI. Both have the same modeled base turn rate in Valorant, even though the mouse hardware setting differs.

Percentage-based games

If the game displays 10% sensitivity, use 0.10 as the multiplier. At 800 DPI, a 10% setting gives 80 eDPI. The calculator accepts the displayed 10 and converts it correctly.

What eDPI cannot tell you

Valorant, CS2 and Overwatch 2 use different base mouse-look scaling. Identical eDPI values across these games do not mean the same mouse distance. Use cm/360 for cross-game physical turn comparisons.

Try your own

Use the free eDPI calculator and the DPI change calculator to preserve settings when changing hardware DPI.

Frequently asked questions

Is eDPI better than DPI?

Neither is better. DPI is a mouse input setting; eDPI combines DPI and game sensitivity to make same-game comparison easier.

Can two different settings have the same eDPI?

Yes. For example 400 × 0.8 and 800 × 0.4 both equal 320.

Why does my eDPI look high in Overwatch?

Its in-game sensitivity scale differs from Valorant and CS2. Compare cm/360 rather than raw eDPI across games.