How to Check Mouse DPI: Settings & Online Test

To find your configured mouse DPI, check the active profile in your mouse software. To estimate it without that software, use a physical mouse and ruler with the online test. These answer different questions: a stored setting is the value you selected; a browser estimate is a reading affected by your movement, distance and input environment.

Find your current mouse DPI setting

A website cannot read the DPI profile stored in your mouse. Use the software for your model when it is available, and confirm which profile is active before testing.

Logitech G HUB

Select the active profile, choose your mouse, then open Sensitivity (DPI) to see its DPI speeds. Profiles can have different settings; check the one used by your game. Follow Logitech’s G HUB DPI instructions for the supported controls.

Razer Synapse

Select your mouse and open Performance. Check the selected sensitivity stage or DPI slider. See Razer’s DPI configuration instructions for stage and separate X/Y settings.

No supported mouse software?

Check your model’s manual for its DPI stages. A DPI button may cycle through stages, but a light or button press alone does not tell you the exact value unless the manual defines it. Windows pointer speed and macOS tracking speed are separate settings, not a readout of hardware DPI. Use the ruler test below to compare repeatable browser estimates.

Quick start: measure with a ruler

1. Configure the target distance: Open the mouse DPI test and choose a benchmark distance such as 5 inches or 10 cm.
2. Align your mouse: Place your mouse firmly against the 0 mark on your physical ruler. Place a guide book against the side of the mouse.
3. Hold and move: Click and hold inside the measurement zone. The cursor hides automatically; move the physical mouse smoothly until the same reference edge reaches the end mark.
4. Release and compare: Release the mouse button immediately upon reaching the target line. The console shows the estimated DPI and run status.
5. Repeat at least 3 times: Keep the same mouse profile, distance and direction. After three runs, copy or use the median shown by the tool. Choose New group before changing your setup.

How a browser mouse DPI test works

Unlike screen-bound tools that stop tracking when the cursor hits a display edge, the Pointer Lock API lets the page receive relative movement while locked. Those values are browser-reported movement units, not a guarantee of unmodified sensor output.

A mouse DPI test compares that relative movement with a measured physical distance. It is useful for checking whether your setup is repeatable and for comparing one setup with another, but it is not a certified hardware specification.

Worked example: 4,000 movement units over 5 inches

For a straight horizontal pass with 4,000 net browser movement units and a ruler distance of 5 inches, the estimate is 4,000 ÷ 5 = 800 DPI. The same physical distance is 12.7 cm, giving (4,000 × 2.54) ÷ 12.7 = 800 DPI. These are arithmetic examples, not hardware validation results.

Horizontal mode uses net X movement, vertical mode uses net Y movement, and Free angle uses the straight-line displacement from the start to the finish. Moving out and back cancels part of that displacement; it does not add a useful measurement distance. Use three straight passes and compare their median.

The browser’s movement units can vary across browsers and operating systems, as documented by MDN’s movementX reference. Standard Pointer Lock removes the screen-edge limit, but this tool does not request unadjusted raw movement or certify sensor accuracy.

What you need for a consistent test

Reference distances

Reduce sources of variation

If your estimate changes noticeably when swiping quickly versus slowly, pointer settings or technique may be affecting the result. These steps make comparisons more consistent; they do not prove that the browser received raw sensor data.

• Windows 11 / 10: Open Mouse Properties (for example, with main.cpl), then use the Pointer Options tab to review Enhance pointer precision. Keep the chosen setting unchanged while comparing runs.
• macOS: Open System Settings > Mouse > Advanced to review Pointer Acceleration. Keep the setting unchanged for every comparison; the graphical setting is preferable to undocumented Terminal changes.

Troubleshooting

The cursor disappeared. Is that normal?

Yes. Pointer Lock hides the cursor while the mouse button is held. Release at the ruler mark to save the run, or press Escape to cancel without saving. Losing focus also cancels the run.

The test will not start

Use a physical mouse in a desktop browser. Keep the page in focus, release the mouse button, then press and hold inside the test area again. If it still fails, check site permissions or try another desktop browser that supports Pointer Lock. A phone, touchscreen or trackpad cannot measure physical mouse DPI.

The test does not respond in a narrow window or mobile preview

A narrow window does not disable measurement. The test still needs a physical mouse and successful mouse capture. Embedded previews may reject capture even when they show the desktop page. Use “Copy page link” below the failed test area and paste the address into a standalone desktop browser. If device emulation turns mouse input into touch, disable touch emulation before testing. Touch or pen movement cannot be used as mouse DPI data.

The reading is much lower than expected

Check the unit and measure the full distance with the same mouse edge at both marks. Do not stop at the on-screen line. Confirm the active DPI profile in your mouse software, then repeat without changing browser or pointer settings.

Fast and slow swipes give different results

Start one new group for slow swipes and another for fast swipes over the same ruler distance. Compare the medians. A difference can come from technique or OS/browser input handling; the page cannot diagnose mouse acceleration from event sizes alone.

The value changes between browsers or computers

Standard Pointer Lock can include browser and operating-system transformations. Record both environments and compare complete groups within each one. A stable browser estimate does not establish an absolute hardware DPI value.

I changed the distance and my result cleared

A completed run belongs to its original distance and direction. Changing either starts a new group so an old swipe is never recalculated with new settings. The last three saved runs remain under the result details.

Copy or transfer did not work

Allow clipboard access when your browser asks, or select and copy the displayed value manually. Transfer to the eDPI calculator also requires browser session storage. If storage is blocked, open the calculator and enter the DPI yourself.

Common mouse DPI test questions

Can I check mouse DPI without software?

Yes. A ruler-based online test can produce a useful browser-based estimate without installing mouse software. If your mouse software is available, use it to confirm the active configured DPI before comparing the result.

Why is my online mouse DPI test different from my configured DPI?

A difference can come from the physical start or stop point, path, pointer settings, browser movement units, or the mouse configuration itself. Read the mouse DPI deviation guide before treating one estimate as a hardware problem.