Mouse Sensitivity Test & Verification
Measure your physical mouse travel, test 2D pointer responsiveness, and understand the difference between browser movement and in-game 3D yaw rotations.
Can a web browser test reproduce my 3D game sensitivity?
No web browser can directly replicate 3D game sensitivity because games use custom camera angles, field of view (FOV), and proprietary yaw constants (such as 0.022 in Source Engine or 0.07 in Valorant). Instead, this tool measures your physical pointing device's raw coordinate displacement, which you can translate into cm/360 or in-game sensitivity.
Active Profile Parameters
Click & Swipe to Test
Measure raw displacement per swipe
Browser 2D Pointer vs. 3D Game Engine Camera
In desktop applications and web browsers, mouse movement moves a 2D cursor across discrete screen coordinates $(X, Y)$.
In competitive games like CS2, Valorant, or Apex Legends, the 2D cursor is hidden and the mouse deltas are multiplied by a yaw constant to rotate your 3D perspective in spherical radians. Because each game implements different yaw constants and FOV scaling, mathematical calculators (like eDPI and cm/360) provide the theoretical target, while this test validates physical hardware linearity.
- Websites measure 2D pointer coordinates; 3D game engines rotate camera angles via custom yaw coefficients.
- Use eDPI and cm/360 as planning benchmarks, then test physical linearity on your desk.
- Always ensure mouse acceleration is disabled so identical physical movement produces consistent camera rotation.