Mouse Polling Rate Test: Measure Your Mouse's Hz in Real Time
Polling rate determines how often your mouse reports its position to your computer every second, measured in Hertz (Hz). A higher polling rate means smoother cursor movement and lower input lag — which is why gaming mice advertise 1000Hz, 4000Hz, or even 8000Hz as a selling point. This tool measures your mouse's actual polling rate live, right in your browser.
Whether you just bought a new gaming mouse and want to confirm it's really hitting its advertised Hz, or you're troubleshooting a mouse that feels laggy or stuttery, this test gives you a real number in seconds.
What Polling Rate Actually Means
Every time you move a mouse, it sends an update to your computer about its new position. Polling rate is simply how many of these updates happen per second. A mouse polling at 125Hz sends 125 position updates per second, while a 1000Hz mouse sends 1,000. Between each update, your computer has no idea the mouse has moved — so a lower polling rate means small, regular gaps in tracking that can feel like slight input delay or a less "connected" feeling cursor.
Most standard office mice run at 125Hz, which is perfectly fine for browsing and typing. Gaming mice typically start at 500Hz or 1000Hz, with newer high-end models pushing to 4000Hz or 8000Hz for competitive titles where every millisecond of responsiveness counts.
How This Test Works
Move your mouse continuously in circles over the test card and the tool counts how many movement updates your browser receives each second, converting that into a live Hz reading. The Current Polling Rate updates continuously as you move, the Maximum Detected card locks in the highest rate seen during your session, and the Real-Time Performance chart plots your polling rate over the last few seconds so you can see how consistent it is.
For the most accurate reading, move in smooth, continuous circles rather than short back-and-forth flicks — small or jerky movements can undercount your true polling rate simply because there isn't enough consistent motion for the browser to sample cleanly.
If your click timing feels inconsistent alongside a lower-than-expected polling rate, it's worth also running the mouse click counter to rule out a switch issue rather than a polling problem.
Why Your Reading Might Be Lower Than Advertised
It's common to see a slightly lower number here than your mouse's spec sheet claims, and that's usually not a fault with your hardware. Browsers and operating systems can coalesce or throttle high-frequency input events before JavaScript ever sees them, especially at very high rates like 4000Hz and above. A mouse that's genuinely polling at 1000Hz will almost always show close to that number here; a mouse claiming 8000Hz may show meaningfully lower simply due to how browsers batch input events — that's a browser-level limitation, not a sign your mouse is defective.
If you need a fully accurate reading for a very high polling rate mouse, dedicated desktop utilities (often provided by the mouse manufacturer) that read directly from the USB report rate will be more precise than any browser-based test.
Troubleshooting Low or Unstable Polling Rates
Reading Is Much Lower Than Expected
Check that your mouse's polling rate hasn't been set lower in its manufacturer software — many gaming mice let you choose between 125Hz, 500Hz, and 1000Hz, and it's easy to leave it on a lower setting by accident. Also confirm you're plugged into a USB port capable of the speed your mouse needs; some older USB hubs or ports can bottleneck high polling rate mice.
Rate Fluctuates Wildly While Moving
A polling rate that jumps around a lot rather than holding steady can point to a failing USB cable, a loose connection, or background software competing for USB bandwidth. Try a different USB port directly on your computer rather than through a hub, and close any other software that might be polling USB devices.
Wireless Mouse Shows a Lower Rate Than Wired Mode
This is expected for most wireless mice — many drop from 1000Hz wired to 500Hz or lower over 2.4GHz wireless, and even lower over Bluetooth, due to bandwidth and battery-life tradeoffs. Check your mouse's specifications to see what its wireless polling rate is actually rated for before assuming something is wrong.
When to Use This Tool
- Right after buying a gaming mouse, to confirm it's hitting its advertised Hz
- If your cursor feels slightly laggy or "steppy" compared to another mouse
- After changing your mouse's polling rate setting in its software
- Before a competitive gaming session, alongside the click accuracy test
- When comparing wired vs. wireless mode on the same mouse
Frequently Asked Questions
What polling rate do I actually need?
125Hz is fine for everyday use, 500–1000Hz is the sweet spot for most gamers, and anything above 1000Hz mainly benefits competitive, fast-paced games where every millisecond matters.
Why does my reading change every time I test?
Polling rate readings taken in a browser are sensitive to how smoothly and consistently you move the mouse, plus normal system load. Small variation is normal — look at the highest consistent range you see rather than a single reading.
Can a browser test really measure 8000Hz mice accurately?
Not perfectly. Browsers can throttle or batch very high-frequency input events, so extremely high polling rates may read lower here than a dedicated desktop utility would show.
Does a higher polling rate use more CPU?
Slightly, yes — more updates per second means more work for your system to process. On modern computers this is negligible, but it's part of why very old or low-power PCs sometimes ship mice defaulted to 125Hz.
Do I need to install anything to run this test?
No installation is required. It runs directly in your browser and reads your mouse's movement in real time.
Check Your Other Hardware Too
If you're benchmarking a new mouse, it's worth checking the rest of it too. Try the mouse click counter to test click speed, the click accuracy test to measure precision, or the full mouse tester to check every button, scroll tick, and double-click timing in one place. For your other peripherals, the keyboard test and microphone test are also worth a look.
Ready to Check Your Polling Rate?
Move your mouse in continuous circles above and watch the live Hz reading and chart update in real time.