What Is eDPI?
Effective DPI (eDPI) is your mouse's DPI multiplied by your in-game sensitivity slider. It exists because neither number means much on its own - a DPI of 800 with a sensitivity of 2.0 moves your crosshair the same amount as a DPI of 1600 with a sensitivity of 1.0. eDPI collapses both settings into one comparable value, so two players with completely different raw settings can confirm they're actually aiming at a similar speed.
How to Use This Calculator
- Enter your mouse DPI (check your mouse software, or use the default your mouse ships with).
- Enter your in-game sensitivity multiplier exactly as your game's settings menu shows it.
- Your eDPI updates instantly, along with a rough feel category.
How the Calculation Works
eDPI = Mouse DPI × In-game Sensitivity
That's the entire formula - no hidden constants. A mouse set to 800 DPI with an in-game sensitivity of 0.4 gives an eDPI of 320. The same feel could come from 400 DPI at 0.8 sensitivity, or 1600 DPI at 0.2 sensitivity - all three produce an eDPI of 320 and move your crosshair the same physical distance for the same mouse movement, within that one game.
Understanding Your Result
| eDPI Range | Common Description |
|---|---|
| Below 300 | Low sensitivity - large arm movements, favored for precise flick aiming |
| 300–600 | Medium sensitivity - the most common range among competitive FPS players |
| 600–1200 | Medium-high - smaller wrist movements, faster target acquisition |
| Above 1200 | High sensitivity - minimal hand movement, harder to control fine aim |
These bands are a general community reference, not a rule - the right eDPI depends on mouse pad size, grip style, monitor size, and personal preference far more than any fixed number.
Why eDPI Alone Isn't the Full Picture
eDPI tells you the sensitivity relationship between two setups, but it doesn't account for a game's yaw value - how many degrees the camera actually turns per count of mouse movement, which differs from game to game. Two games can report the identical eDPI and still feel noticeably different to turn in. For a physical, game-independent comparison, use the cm/360 Calculator instead, which factors in each game's turn rate.
Common Mistakes to Avoid
- Comparing eDPI across different games directly - the same eDPI can produce a different turn speed in each title because of differing yaw values.
- Forgetting Windows pointer speed - if your OS mouse speed isn't at the default middle notch, your real effective sensitivity will differ slightly from this calculation.
Frequently Asked Questions
What eDPI do professional players use?
It varies widely by player and game, but a large share of competitive FPS players land somewhere in the 300–500 eDPI range, generally correlating with a low-to-medium DPI mouse and a sensitivity under 1.0.
Is a lower eDPI always better for aim?
Not universally - lower eDPI generally rewards precision at the cost of turn speed, while higher eDPI trades precision for faster flicks and less required desk space. The right value depends on play style.
Should I match eDPI exactly when switching games?
Matching eDPI is a reasonable starting point, but because yaw differs between games, matching your actual cm/360 distance with the cm/360 Calculator gives a truer match to how your aim will physically feel.
Conclusion
eDPI is the fastest way to sanity-check whether two sensitivity setups are in the same ballpark. For a more precise, physical comparison - especially across different games - follow up with the cm/360 Calculator or the Sensitivity Converter.