10 Second Scroll Speed Test
Press start and scroll the track as fast as you can. Ten seconds later you get the pixels that went by, the distance they add up to on your screen, your speed and what that pace would be over an hour.
- Free
- No sign-up
- Runs in your browser
Someone shared this result with you. It was made with Scroll Speed Test, free on VISU, no sign-up.
Works with a finger, a mouse wheel, a trackpad or the arrow keys. Scrolling back up counts too: the page adds every pixel that moves.
Your result
Your speed shows up here after the 10 seconds.
Pixels are measured. Distance is an estimate: it takes 1 pixel as 1/96 inch, the ratio CSS defines. Your screen may be denser. Calibrate below to use its real size.
Calibrate with a card (optional)
Hold the short edge of a bank card against the screen and move the slider until the bar is exactly as wide as that edge.
The challenge link carries your score in pixels and nothing else: no name, no device, no time.
What is measured and what is assumed
Measured: pixels of content
The total of every change of the track scroll position during 10 seconds, in CSS pixels. The clock starts at your first movement and the track locks when it ends.
Assumed: the size of a pixel
To turn pixels into metres the page needs the size of one pixel. The default is the ratio CSS itself defines, 1 px = 1/96 inch (0.2646 mm). Phones usually pack more pixels into that space, so the default tends to overstate the distance on a phone.
Your correction: the card
Match the bar to the short edge of a bank card (53.98 mm in the ID-1 format) or to a ruler, and the page uses the real pixels per millimetre of your screen. The width is a field you can edit if you measure something else.
The hour is arithmetic, not a habit
Speed × 3,600 seconds. It says what this pace would add up to in an hour. Nobody scrolls flat out for an hour, and the page does not claim you do.
Sources (opened on October 11, 2026)
The card size comes from a paid standard: we could open its catalogue page, not the text. Check your card with a ruler if in doubt.
Where does all that scrolling go?
Ten seconds is a game. The hours are the real story. On VISU, verified actions such as completing a mission can earn VISU Credits. Rewards depend on the offer, your eligibility and a verified action.
Explore the Attention Economy Turn your screen time into a yearly receiptHow to use it
- Press Start. The track unlocks and waits for you.
- Scroll inside the track as fast as you can. The 10 seconds start at your first movement.
- Read your result: speed, distance, pixels and the same pace over an hour.
- Optional: calibrate with a bank card so the distance matches the real size of your screen.
- Download the card or send the challenge link, which carries only your score.
Examples
A fast thumb on a phone: 18,400 px
18,400 px in 10 seconds is 1,840 px a second. At 1 px = 1/96 inch that is 4.87 m, or 48.7 cm a second. Kept up for an hour it would be 1.75 km.
A mouse wheel: 6,000 px
6,000 px in 10 seconds is 1.59 m at the same ratio, 15.9 cm a second, about 572 m at that pace for an hour.
Why calibrating changes the distance
On a phone where the 53.98 mm card edge matches a bar of 294 px, the screen has 5.45 px per mm. The same 18,400 px are then 3.38 m, not 4.87 m. The pixels do not change: the ruler does.
Add this tool to your site
Put this tool on your blog, store or club site. It runs inside your page, free, with no account, and a small "by VISU" credit line under it.
Questions
How is scroll speed measured?
The track is a normal scrolling box. While the 10 seconds run, the page adds up every change of its scroll position in pixels, up or down. Speed is that total divided by 10.
Is the distance real?
The pixels are exact. The distance is an estimate until you calibrate: by default it takes 1 pixel as 1/96 inch, the ratio CSS defines, and real screens differ. It is also the distance the content travelled, not the travel of your finger, because the page keeps gliding after a flick.
Can I compare my score with someone on another device?
For fun, yes. As a fair contest, no: a finger on glass, a free-spinning wheel and a trackpad move pages very differently, and each system adds its own glide. Compare runs on the same device if you want it to mean something.
Does it test my mouse wheel?
It shows how many pixels your wheel moves a page in 10 seconds, which is useful to compare settings. It does not diagnose hardware faults.
What does the challenge link contain?
Only your score in pixels, in the part of the address after the # sign. No name, no device and no time. Whoever opens it sees the number to beat.
Is anything saved?
No. The score and the calibration live in the page while it is open. Nothing is stored on your device or sent anywhere, and the card image is made in your browser.