Find out the real DPI your mouse moves at, not just the number set in its software. Measure it directly above.
Mouse DPI Analyzer — Measure Your Real DPI
Measure your mouse's true DPI in the browser. Enter your configured DPI, move the mouse a set distance, and compare it against your real, actual DPI.
How to use
- Enter your settings. Type the DPI your mouse is set to and the physical distance you plan to move it, in cm or inches.
- Lock and move. Click the zone to lock the cursor, then slide the mouse that exact distance in a straight line.
- Click to finish. Click again to release. The analyzer shows your measured DPI and how close it is to the configured value.
Why test this
The DPI printed in your mouse software is what the firmware aims for, not always what your system actually moves. Pointer acceleration, the Windows 'Enhance pointer precision' option, a budget sensor, or a custom OS pointer speed all bend the real figure, and a gap of a few percent is normal. That matters because cm/360 (the distance you drag to turn a full circle) is built on real DPI, not the label. If the two disagree, the sensitivity you copy from a pro or carry between games will feel subtly off, and muscle memory never quite settles. Measuring against a ruler tells you the number your aim is truly built on. Disable acceleration first for the closest reading; if the measured value still drifts far from configured, the sensor or your OS settings are the cause, not your hand.
What the results mean
Real DPI is the count of pixels the browser saw divided by the distance you actually moved, so it reflects how far the cursor travels in practice. Configured echoes the DPI you typed, and Accuracy is Real DPI as a percentage of it. At 100% the mouse moves exactly as far as its setting claims; the readout stays green within 5% of that and turns amber beyond, which flags acceleration or a measuring slip. The live counts number is raw pixel travel during the lock. Let it grow as you slide the full distance, then click to finish. Repeat the slide two or three times: hand-measured distance is never perfect, and an average is more honest than one run. Once you trust the real DPI, feed it into the sensitivity converter so your cm/360 is built on the true figure.
FAQ
- How accurate is a browser DPI test?
- It is an estimate. Browsers report movement in pixels scaled by your OS pointer settings, so disable mouse acceleration for the closest result.
- Why is my measured DPI different from my configured DPI?
- Pointer acceleration, an inaccurate sensor, or a measuring error all shift the result. A few percent off is normal.
- What does the accuracy percentage mean?
- It is measured DPI divided by configured DPI. 100% means your mouse moves exactly as far as its DPI setting claims.
- Do I need a ruler?
- Yes. Marking a real start and end point for the set distance is what makes the measurement meaningful.
- Is this tool free?
- Yes. It runs entirely in your browser, needs no installation, and stores nothing.