Mouse Spin Test
How fast can you spin your mouse? Circle the centre and get your spins, live and peak RPM, how round your circles are, and a rank. Take the 10 or 30 second challenge or spin freely. Works with touch too.
Move your cursor (or finger) in circles around the centre to start.
Best for this mode: none yet
The run starts after about 30 degrees of turning. Normal mode only sees the cursor while it is on the page, so big arm sweeps work best in pointer lock mode, which reads raw mouse movement instead.
About the mouse spin test
How it works
Every time your pointer moves, the test measures its angle around the centre dot and adds up the change, so it keeps counting past a full turn instead of resetting at 360 degrees. Spins are the net turn divided by 360, shown to the nearest tenth, so a partial turn stays a fraction and circling back the other way subtracts. Live RPM is how far you turned in the last second, times 60. An empty window stays at 0. Average RPM is spins per minute over the run, shown as a whole number, and peak RPM is the highest one-second reading. Smoothness compares how much your distance from the centre varies: perfect circles score near 100, wobbly ovals score lower.
What it tells you about your mouse
Fast circles push a sensor harder than most games do. Spec sheets list a maximum tracking speed in IPS (inches per second), such as "400 IPS". Past that speed the sensor can malfunction, or "spin out": the cursor stalls, jumps or flies off in the wrong direction. Here that shows up as straight lines across the trace and a non-zero jump count.
For scale: a 10 cm circle at 300 RPM is about 1.6 metres per second, or roughly 62 IPS. Any decent modern sensor handles that easily. If yours glitches at those speeds, the box claim deserves a second look. Check tracking at rest with the mouse drift test.
Tips for a better score
- Small circles near the centre are faster to draw than big ones. Stay outside the centre dot.
- Spin from the wrist or fingers, not the whole arm, and keep one direction.
- Turn off pointer acceleration if your circles warp at speed. The mouse acceleration test shows whether it is on.
- On a phone or tablet, trace circles with one finger inside the arena.
Typical numbers and limits
Most people average 150 to 300 RPM over 10 seconds and peak a little higher. Over 400 RPM is very fast. The browser only gets as many position updates as your mouse and screen deliver, so very fast, tiny circles can be undercounted on low polling rates. Pointer lock mode keeps tracking when the cursor would leave the window, but it measures shape against a virtual edge, so smoothness is not scored there. A challenge saves the same tenth of a spin shown on screen, and free spin saves the same whole-number peak. Both stay in this browser only.
Related tools
Check every button and the wheel with the mouse tester, see if speed changes your cursor travel in the mouse acceleration test, look for a wandering cursor in the mouse drift test, and put your fast hand to use in the aim trainer.
Frequently asked questions
What counts as a spin?
A spin is one full turn around the centre dot, 360 degrees. Each move adds the change in angle, and the total keeps going past a full turn instead of resetting. Spins are that net angle divided by 360, shown to the nearest tenth. Half a turn reads 0.5, not 1. Spinning back the other way subtracts. The run starts only after 30 degrees of turning inside the arena, and that lead-in is not included. A jump of more than 144 degrees between two samples is ignored, not counted as a turn.
How is RPM calculated?
RPM is revolutions per minute. Live RPM is how far the pointer turned during the last second, divided by one full turn, then multiplied by 60. A half turn in that second is 30 RPM. With fewer than two samples, or if the latest sample is older than one second, live RPM is 0. That path never divides by a zero time span, so it cannot become Infinity. Average RPM is spins divided by the length of the run in minutes, then shown as a whole number. A challenge uses 10 or 30 seconds. Free spin uses the time from the start to the last move, and a time of 0 gives an average of 0. Peak RPM is the highest live reading, shown as a whole number.
Is the mouse spin test timed?
The 10 s and 30 s challenges stop on their own when the time is up. Free spin keeps going until you press Finish. The clock starts when the run starts, not when the page loads. A challenge saves the spin total at the same tenth shown on screen. Free spin saves the peak RPM as the same whole number shown on screen. Both stay in this browser only.
Does a partial circle count as a full spin?
No. The counter keeps the fraction. The on-screen total and the saved challenge score both use the nearest tenth of a spin, so 1.4 stays 1.4. Only a net turn that rounds to the next tenth is shown that way. While you spin, direction is CW or CCW from the turn in the last second, or a dash if that turn is under 0.2 radians. The result uses CW, CCW or a dash for the net turn of the run.
What does pointer lock change?
Pointer lock reads raw mouse movement and holds it on a virtual circle, so a big arm sweep still counts when the cursor would leave the window. It is offered only for a fine pointer, such as a mouse. Smoothness is not scored in that mode, because the radius is pinned to the virtual edge. While the pointer is locked, wheel scrolling is blocked. A finger circle on the arena does not scroll the page. Press Esc or Release pointer to let go. Leaving the page releases the lock and removes the listeners.
What do smoothness and the rank mean?
Smoothness compares how much your distance from the centre varies, once there are at least 30 samples outside pointer lock. A steady radius scores near 100. A varying radius scores lower. The labels are Near-perfect circles, Pretty round, Wobbly and Potato-shaped. Pointer lock, or fewer than 30 radius samples, shows n/a. The rank uses the average RPM shown as a whole number: Vinyl Record from 0, Ceiling Fan from 90, Blender from 180, Power Drill from 270, Jet Turbine from 360 and Fidget Spinner from 480. Those are labels on this page, not a record list.