Mouse DPI Calculator

How Does the Formula Work?

The Mouse DPI Calculator computes your effective DPI (eDPI), centimeters per 360-degree turn, and converts your sensitivity settings across seven popular FPS games. Whether you are switching from CS2 to Valorant, fine-tuning your Apex Legends aim, or comparing your settings to pro players, this tool gives you the exact numbers to maintain consistent muscle memory across games.

Understanding eDPI

Effective DPI normalizes mouse speed into a single number regardless of your DPI and sensitivity combination. A player at 400 DPI with 2.0 sensitivity has the same 800 eDPI as someone at 1600 DPI with 0.5 sensitivity, both move their cursor at identical speed. This makes eDPI the universal metric for comparing aim speed between players and setups. Pro CS2 players typically use 600-1200 eDPI, while Valorant pros average 200-400 eDPI (different scale due to different yaw values).

CM/360 Explained

Centimeters per 360 degrees measures how far you physically move your mouse to complete one full rotation in-game. This is the most universal comparison metric because it is independent of any game engine, 40 cm/360 feels identical whether you play CS2, Valorant, or Apex. Most professional FPS players fall in the 30-50 cm range: below 25 cm is high sensitivity suited for wrist aimers, above 50 cm is low sensitivity preferred by arm aimers who use large mousepads.

Cross-Game Sensitivity Conversion

Each game engine interprets sensitivity differently through a yaw constant, the degrees of rotation per mouse count at sensitivity 1. CS2 and Apex share yaw 0.022, making their sensitivities directly interchangeable. Valorant uses 0.07, so CS2 sensitivity divided by approximately 3.18 gives the Valorant equivalent. The calculator handles all seven games automatically, ensuring your physical mouse movement produces the same in-game rotation everywhere.

Finding Your Ideal Sensitivity

Start with 35-45 cm/360, which is the range where most professional players settle after years of experience. Practice tracking targets and flicking to corners, if you consistently overshoot, increase your cm/360 (lower sensitivity); if you struggle to reach targets quickly, decrease it. Once you find a comfortable value, use this calculator to set the exact equivalent in every game you play. Consistency across games is more important than matching any specific pro player setting.