How the test works
Scroll over the box to start the timer. For the chosen length (5, 10 or 30 seconds), the test counts:
- Scroll events, one for each notch on a standard wheel
- Events per second, your scroll rate
- Distance, the total scroll amount in pixels, normalised across browsers
Both directions count. The page itself won’t scroll while you’re over the box.
Benchmarks (notched wheel, 10 seconds)
| Events/sec | Level |
|---|---|
| Under 8 | Relaxed |
| 8–15 | Average |
| 15–25 | Fast |
| 25+ | Very fast |
Free-spinning wheels (like the infinite-scroll mode on some mice) and touchpads produce much higher numbers, so compare like with like.
Diagnose a jumpy scroll wheel
A worn or dirty wheel encoder can make the page jump the wrong way or skip notches. Scroll slowly in one direction for 10 seconds:
- The distance should go up in steady steps.
- On the mouse button test, only one direction should light up.
If the wrong direction shows up, try blowing compressed air into the wheel gap while turning it. That fixes most cases. If it doesn’t help, the encoder may need replacing.
Where scroll speed matters
Fast scrolling is used for bunny-hopping in some shooters (where jump is bound to the wheel), for weapon switching, and in some rhythm and clicker games. It’s also a handy test when choosing between wheel types.
Frequently asked questions
Why is my touchpad score so different from my mouse?
Touchpads and smooth-scroll wheels send many small scroll events, while notched wheels send one larger event per notch. Compare scores on the same device.
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