Output
Cursor path, CSS pixels and distance
UserBenchmark / All Tools / Lift-Off Distance Test
Mouse
Lift-Off Distance Test
Watch motion events while manually raising the mouse on measured spacers.
Free to useNo downloadNo sign-up
Lift-Off Distance Test · At a glance
Quick answer: Watch motion events while manually raising the mouse on measured spacers. The page observes tracking at heights you supply.
Lift-Off Distance Test
The test loads when you open it. Device access is requested only after you choose to start.
Detailed guide
How to use this tool
- Place measured spacers under the mouse and move it gently at each height.
- Watch whether motion events continue while you raise the sensor.
Input
Movement inside the test surface
Browser requirement
Pointer coordinates after OS transforms
Processing
Runs on your device; no tool-result upload
How it works and what the result means
Coordinates are CSS pixels after operating-system pointer settings. Speed is browser-visible cursor speed. They do not directly expose raw sensor counts, DPI, physical acceleration or lift-off distance.
Reading the result
The page observes tracking at heights you supply. It has no way to measure spacer thickness or sensor-to-surface distance itself.
What to check next
Use stable non-scratching spacers and the same pad. Tilt can make the actual sensor height different from the spacer height.
For drift, leave the mouse still. For jitter, draw a slow straight line. For lift-off testing, add measured spacers yourself and observe when movement stops being reported.
Frequently asked questions
Will the page report lift-off distance automatically?
No. Physical height must be measured manually. The trace only shows whether browser-visible motion was received during your observation.
How do I start the Lift-Off Distance Test?
Start the tracker and move the cursor inside the test surface. Use the trace and distance statistics to compare different movements.
Does this tool require a download or an account?
No. Open the interactive tool above in a modern browser. The instructions and explanations are available even with JavaScript disabled; running a test needs JavaScript.
Why can two attempts give different results?
Power settings, background tasks, browser scheduling, operating-system input processing and device settings affect measurements. Compare repeated attempts with identical settings rather than the single highest score.