Manufacturers advertise DPI values that do not always match what your sensor delivers. If your cm/360° calculations feel off, measuring true DPI is the fastest way to fix it. This analyzer counts raw mouse movement while you drag across a known distance — no guesswork, no arbitrary limits on DPI or distance.
How to measure your DPI
- Mark a straight line on your mousepad or paper for the distance you will move. Measure the distance the mouse travels, not the full width of the pad.
- Enter that distance, pick inches or centimeters, and choose the axis you will move along (X+ for left-to-right, Y+ for bottom-to-top, and so on).
- Enter your configured DPI if you know it. If not, use any placeholder such as 800 — the calculated actual DPI is independent of that value.
- Click and hold inside the red crosshair area, move your mouse the full marked distance as straight as possible, then release to see your results.
Tips for accurate results
- Move the physical distance you marked — do not try to match an on-screen indicator to zero deviation.
- Use a longer distance (5 inches or 25 cm) for a more stable reading if your first result looks noisy.
- Set Windows pointer speed to the default 6/11 (middle notch) and disable “Enhance pointer precision” before measuring.
- Reset browser zoom to 100%. This tool requests unadjusted pointer movement where your browser supports it.
Use your measured DPI in the converter
After a measurement, click Use in converter to open our mouse sensitivity converter with your actual DPI pre-filled. Matching real DPI across games makes cm/360° conversions and eDPI calculations more reliable. See all calculators on the tools hub.