Mouse Polling Rate Test Online
Check your mouse Hz in the browser and see whether it is reporting around 125Hz, 500Hz, 1000Hz, or a higher gaming polling rate.
Measure mouse polling rate (browser event Hz)
This measures how often your browser receives mouse movement events (Hz). It is a useful proxy to spot obvious issues (e.g., stuck at ~125Hz), but it is not a lab-grade USB measurement.
Run a reliable test
Prepare a clean sample
Use a desktop browser, close busy tabs, and connect the mouse directly when possible.
Move continuously
Choose 10 or 30 seconds, then move in smooth circles inside the test area without stopping.
Compare the distribution
Use median, P95, peak, sample count, and stability together instead of trusting one short spike.
Understand the result
Polling Rate
125Hz is standard for basic mice, 500Hz is common for gaming, 1000Hz is high-performance. If expecting higher but seeing ~125Hz, check mouse software or USB power settings.
Stability Score
High stability means consistent polling intervals. Low stability with erratic readings may indicate USB issues, power saving throttling, or system interference.
Distribution
The frequency distribution shows how consistent your polling is. A tight peak indicates stable polling; a wide spread suggests inconsistent intervals.
Accuracy & methodology
Our polling rate tester measures the time interval between mouse movement events in your browser. When you move your mouse, each position update is timestamped with high-precision timers. By calculating the frequency of these updates, we determine your effective polling rate in Hz. We also show distribution patterns, median values, and stability scores. All processing happens locally—no mouse data is sent to servers.
What this test measures
A mouse polling rate test measures how often mouse movement events reach your computer or browser, expressed in Hertz (Hz). A 125Hz mouse updates about every 8ms, a 500Hz mouse about every 2ms, and a 1000Hz mouse about every 1ms. This online mouse Hz test shows median Hz, peak Hz, distribution, and stability so you can spot settings stuck at 125Hz, unstable USB connections, or polling rates that do not match your gaming mouse configuration.
What it cannot measure
This browser-based test accurately measures polling rates up to approximately 1000Hz for most scenarios. However, there are limitations: Browser event handling introduces some variance. Very high polling rates (2000Hz+) may not measure accurately. System load and compositor timing can affect readings. USB hubs or power saving may throttle rates. For lab-grade precision, hardware USB analyzers are more accurate.
How to interpret the result
The frequency distribution shows how consistent your polling is. A tight peak indicates stable polling; a wide spread suggests inconsistent intervals.
What to do next
Connect directly to a motherboard USB port (not a hub). Hubs and extension cables reduce effective polling rate.
Who Should Use This Test?
Common reasons to check polling rate
Competitive Gamers
Compare browser-visible mouse event Hz with the expected setting and look for obvious caps or unstable reporting.
New Mouse Buyers
Check whether browser-visible event Hz is broadly consistent with the expected setting before the return window closes.
Troubleshooting Jitter
Irregular polling can cause cursor jitter and micro-stutters. This test helps identify polling inconsistency.
USB Hub Users
USB hubs can reduce effective polling rate. Test directly connected vs. hub to compare.
Troubleshooting
Result lower than rated Hz
Connect directly to a motherboard USB port (not a hub). Hubs and extension cables reduce effective polling rate.
Result shows 125Hz instead of 1000Hz
Check your mouse software; some mice default to 125Hz and require software to enable higher rates.
Inconsistent readings
Close background applications that may be consuming CPU. High CPU load causes the browser to miss polling events.
8000Hz mouse shows 1000Hz
8000Hz (8K) polling requires USB 2.0 or higher direct connection. Some USB controllers cap at 1000Hz. Check your mouse firmware version.
Keep Your Polling Rate High
Best practices for stable mouse input
Use a Direct USB Port
Always plug your gaming mouse directly into a motherboard USB port. Avoid hubs, extension cables, and front-panel USB ports.
Keep Firmware Updated
Mouse manufacturers release firmware updates that can fix polling rate bugs and improve connection stability.
Check Mouse Software
Many gaming mice require their companion software to enable rates above 125Hz. Ensure the software is installed and the rate is configured.
Monitor CPU Usage
High CPU load can cause the OS to miss mouse reports, making the effective polling rate appear lower than configured.
Frequently asked questions
How do I test my mouse polling rate online?
Start the mouse polling rate test, choose a 10s or 30s sample, then move your mouse continuously inside the test area. The tool measures the time between movement events and reports median Hz, peak Hz, distribution, and stability. If you expect 1000Hz but repeatedly see about 125Hz, check your mouse software, USB port, wireless mode, power saving settings, or browser.
What mouse polling rate numbers are normal?
Common mouse polling rates are 125Hz for basic or Bluetooth mice, 500Hz for many gaming settings, and 1000Hz for most modern gaming mice. Some newer mice support 2000Hz, 4000Hz, or 8000Hz, but browser event handling may under-report very high rates. For most players, a stable 1000Hz reading is the practical target.
Why is my polling rate showing low?
If you're seeing ~125Hz when expecting higher, check these common causes: Your mouse might be set to a lower polling rate in its software. USB power saving settings can throttle polling. Using a USB hub instead of a direct connection can limit rates. Some USB 2.0 ports don't support higher polling rates. Wireless mice may have lower rates when in power-saving mode. Check your mouse software and Windows power settings.
Is this browser test accurate?
Browser-based polling tests measure the rate at which mouse movement events reach your browser, which closely correlates with actual polling rate for most scenarios. However, browser event handling, system load, and compositor vsync can introduce some variance. For lab-grade precision measurement, manufacturer tools or hardware USB analyzers are more accurate. Our test is excellent for quickly spotting obvious issues like being stuck at 125Hz.
Does higher polling rate reduce input lag?
Yes, higher polling rates reduce the time between mouse movement and cursor update. At 125Hz, maximum latency is 8ms; at 1000Hz, it's only 1ms. For competitive gaming, this difference is noticeable. However, the benefits diminish above 1000Hz for most users, and extremely high polling rates (4000Hz+) can increase CPU usage. Most gamers find 1000Hz to be the sweet spot for performance and efficiency.
Does higher polling rate increase CPU usage?
Yes, but minimally on modern systems. At 1000Hz, the mouse sends 1000 interrupts per second to the CPU. At 8000Hz, it sends 8000. On a modern CPU with many cores, this overhead is usually negligible, often under 0.1% CPU usage. Older CPUs or busy systems may show marginally higher CPU usage at 8000Hz. If you notice performance issues with an 8KHz mouse, switching to 4000Hz or 2000Hz usually removes the overhead while keeping most of the latency benefit.
Is 8000Hz polling rate worth it?
For most gamers, the benefit over 1000Hz is very small. The latency improvement from 1ms to 0.125ms is below the threshold of human perception in most gaming scenarios. However, the smoother cursor tracking and reduced micro-jitter are measurable with high-speed cameras and can be detected by highly skilled competitive players. If you already have a 1000Hz setup optimized with a fast monitor and low input lag, 8000Hz is a marginal upgrade. If your current setup has other bottlenecks (60Hz monitor, high input lag), addressing those first will yield much larger improvements.
Can I change my mouse's polling rate?
Yes, most gaming mice allow polling rate adjustment through their companion software such as Razer Synapse, Logitech G Hub, or SteelSeries GG. The available rates depend on your mouse model; common options are 125, 250, 500, and 1000Hz. Some premium mice add 2000, 4000, or 8000Hz options. Budget mice may be fixed at 125Hz with no software option. After changing the rate in software, rerun this test to confirm the new rate is active.
More about polling rate
Understand Hz, stability, and input latency.
Refresh Rate Test Shows the Wrong Hz? Common Causes and Fixes
If a refresh rate test reports 60Hz on a 144Hz or 240Hz monitor, check OS settings, cable limits, browser throttling, VRR, duplicated displays, and power mode.
Mouse Polling Rate Test Results Are Inconsistent? Why It Happens
Mouse polling rate tests can jump between values because of movement speed, DPI, browser event delivery, wireless mode, CPU load, and USB power settings.
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