Pointer diagnostics
Mouse Polling Rate Explained: 125 Hz vs 500 Hz vs 1000 Hz
Updated
Mouse polling rate describes how often a mouse reports movement or input to the computer. It is expressed in hertz (Hz): a higher number means more reports per second.
To check your own mouse, use our mouse polling rate test. It estimates the pointer reports your browser receives while you move the mouse.
How to test your mouse polling rate
For a result that is easier to compare:
- Open the mouse polling rate test.
- Keep the browser tab active.
- Move the mouse quickly and consistently inside the test area.
- Run more than one short session.
- Compare the average and stability rather than one peak sample.
Browser-based readings can fluctuate. Consistent movement gives the page more samples to compare, but it does not turn the result into a direct USB measurement.
What is mouse polling rate?
Polling rate is the frequency at which a mouse reports to the computer. At 125 Hz, the nominal interval is about 8 ms; 250 Hz is about 4 ms; 500 Hz is about 2 ms; and 1000 Hz is about 1 ms.
That interval is only one part of an input path. It is not the same as total end-to-end input latency, which can also involve the mouse, operating system, application, display, and other timing.
| Polling rate | Approximate interval |
|---|---|
| 125 Hz | 8 ms |
| 250 Hz | 4 ms |
| 500 Hz | 2 ms |
| 1000 Hz | 1 ms |
125 Hz vs 500 Hz vs 1000 Hz
A 1000 Hz setting can provide reports more frequently than 500 Hz, and 500 Hz more frequently than 125 Hz. Whether that difference is noticeable depends on the mouse, game or application, display, computer, and the rest of the input path.
Higher settings can add some processing work on some systems, especially at very high rates. They do not automatically make someone better at a game, so use a setting your mouse and computer handle comfortably.
What polling rate should you use?
For ordinary office use, 125 Hz or 250 Hz can be entirely adequate. Many gaming mice use 500 Hz or 1000 Hz as practical defaults. Older hardware may benefit from a lower setting if a high rate causes problems.
Wireless mice can trade power use, radio conditions, and performance differently by model. A high-refresh-rate display may make frequent reports more relevant in some situations, but it still does not create one best setting for everyone.
Why polling-rate results fluctuate
A browser does not read USB packets directly. Movement speed, browser scheduling, operating-system scheduling, device behavior, power-saving, wireless conditions, CPU load, and the measurement method can all affect the events delivered to a page.
For that reason, samples may not stay at one fixed number. Look for a repeatable range across several active-tab sessions, rather than treating one low or high sample as a hardware verdict.
How to check mouse Hz
Run the browser test with smooth, continuous movement and repeat it under the same conditions. If you need to verify a device setting rather than browser-observed behavior, compare the result with the manufacturer’s software or a native diagnostic tool.
Use the mouse polling rate test again after changing a setting, but remember that it remains an estimate of reports reaching the browser.
Browser-level results show the input events received by the page. They can reveal repeatable patterns, but they cannot prove a physical hardware failure.
Useful answers
Mouse polling rate questions
Is 1000 Hz better than 500 Hz?
It reports more often in nominal terms, but the useful setting depends on the mouse, system, application, and preference. It is not an automatic performance upgrade.
Is 125 Hz bad?
No. It is an older, lower reporting rate that can still be adequate for ordinary use. Different tasks and hardware call for different trade-offs.
Does polling rate affect mouse latency?
It affects one reporting interval in the input path, but it does not represent total system or display latency.
Can every mouse use 1000 Hz?
No. Available settings depend on the mouse firmware and its software; some devices offer lower or different options.
Why does my polling rate fluctuate?
Browser and operating-system scheduling, movement, power saving, wireless conditions, CPU load, and event handling can change a browser-observed reading.
How do I check my mouse Hz?
Move the mouse consistently in the mouse polling rate test and compare several active-tab sessions. Treat the result as a browser estimate, not USB certification.