Mouse Speed & Acceleration Test
Track how fast your cursor moves in real time and get a best-effort read on whether pointer acceleration is enabled. Move your mouse in the pad below to see live speed in pixels per second, then run the matched-swipe test to check for acceleration. Everything runs in your browser — nothing is uploaded.
Live cursor speed
Move your mouse in the pad to measure how fast the cursor travels.
Move your mouse here to measure speed
Acceleration check (best-effort)
Drag across the pad twice using the same physical hand distance — once slowly, once as fast as you can. If acceleration is on, the fast swipe will cover more on-screen distance than the slow one.
Press, drag across, and release — do a slow swipe, then a fast one
A browser only sees motion after the OS has processed it, so this is a best-effort indicator. For consistent aim, turn off "Enhance pointer precision" on Windows or the pointer acceleration curve on macOS.
What this tool measures
The speed meter times how far the cursor travels between pointer samples and reports that as pixels per second, along with your peak speed and a live graph of the last few seconds. Add your screen’s pixel density (DPI/PPI) and it also estimates the physical speed of the cursor across the glass in cm/s and in/s. The acceleration section is a separate, best-effort check: it asks you to swipe the same physical distance slowly and then quickly, and compares how far the cursor travelled each time. Because a browser only ever sees motion after the operating system has processed it, treat the acceleration verdict as an indicator, not a definitive measurement.
Mouse speed, DPI and sensitivity
Your on-screen cursor speed is the product of three things: how fast you physically move the mouse, the mouse’s DPI (counts per inch of physical movement), and the pointer-speed or in-game sensitivity slider. A higher DPI moves the cursor further for the same hand motion, and the sensitivity setting scales that further still. Cursor speed in pixels per second is a useful, device-independent way to compare movements, but it is not the same as raw DPI — to measure the counts your mouse actually reports, use the Mouse DPI Analyzer. To confirm your buttons and scroll wheel register correctly, use the Mouse Tester.
Mouse acceleration and why gamers turn it off
Mouse (pointer) acceleration makes the cursor travel further when you move the mouse quickly, even if the physical distance is the same as a slow movement. It can feel convenient on a desktop, but it breaks the fixed relationship between hand movement and cursor movement, which is exactly what precise aiming relies on. With acceleration off, the same flick always lands the same distance, so players can build muscle memory and repeat shots consistently. On Windows this feature is called "Enhance pointer precision"; on macOS the pointer has always used an acceleration curve that the standard Tracking Speed slider does not disable.
Turning acceleration off for consistent aim
- Windows: open Settings → Bluetooth & devices → Mouse → Additional mouse settings → Pointer Options, then untick "Enhance pointer precision" and apply.
- macOS: the Tracking Speed slider in System Settings → Mouse does not remove acceleration; disabling the curve requires a Terminal command (defaults write .GlobalPreferences com.apple.mouse.scaling -1) and a re-login, or a small utility that manages it for you.
- In games, prefer the title’s "raw input" option so the game reads the mouse directly and bypasses the OS pointer curve.
- After changing any setting, come back and run the matched-swipe test again to see whether the cursor now travels the same distance regardless of speed.