Skip to content
DPI Analyzer

What is my mouse DPI?

This DPI analyzer measures your real mouse DPI: move the mouse a known distance and it counts every step the sensor reports. Measure over 10 cm and a 1 mm slip only moves the result by 1 percent.

Use a ruler, or the long side of a bank card (8.56 cm).

Quick distances
Compare with your DPI setting, and advanced settings

Only change this if your result is off by exactly your Windows scaling, for example 1.5 times at 150%.

Runs in your browser. Nothing is uploaded and no measurement is stored.

Counts
0
Distance
10 cm
Runs saved
0

Put a ruler or a bank card next to your mouse, then press Start measuring. Click once to start counting, move the distance, click again to stop.

How do I check my mouse DPI here?

Lay a ruler next to your mouse, click, slide the mouse along it, click again. The page divides the counts by the distance. That is the whole method.

  1. 1

    Set the distance

    Pick 10 cm, or the long side of a bank card (8.56 cm, the same on every standard card). Longer is more accurate.

  2. 2

    Move the mouse along the ruler

    Press Start measuring, line up the front edge of the mouse with the zero mark, click, move slowly to the end mark and click again.

  3. 3

    Repeat and read the average

    Do three runs. The analyzer shows each run, the average, the closest common DPI setting and how far your runs disagree.

What is mouse DPI?

DPI (dots per inch) is how many steps, or counts, the mouse sensor reports for every inch it moves. At 800 DPI, moving the mouse one inch sends 800 counts to the computer. With Windows pointer speed in the middle and acceleration off, that moves the cursor 800 pixels.

The more exact name is CPI, counts per inch, because the mouse does not draw any dots. The two terms mean the same thing, and most makers print DPI on the box.

DPI is not the same as sensitivity. DPI lives in the mouse. Sensitivity is a multiplier in Windows, macOS or a game. A game at 800 DPI and sensitivity 2 turns exactly as fast as one at 1600 DPI and sensitivity 1. That product is called eDPI.

What does my DPI number mean?

Most mice run at one of a handful of standard steps, so the analyzer also tells you the closest one. Here is what the common ranges are usually used for.

DPIWhere you usually see it
400 to 800Tactical shooters such as CS2 and Valorant, played with low sensitivity and big arm movements.
800 to 1,600The default range of most office and gaming mice. Fine for 1080p and 1440p desktops.
1,600 to 3,2004K screens and multi-monitor desks, where the cursor has far to travel.
Above 3,200Mostly a spec sheet number. Useful for very high resolution setups; most players stay far below it.

There is no best value. If you want help choosing, read what DPI you should use.

How accurate is the DPI analyzer?

The counting is exact; the weak spot is you and the ruler. The error in the result is the error in the distance, as a percentage. Missing the mark by 1 mm over 10 cm is a 1 percent error. Over 5 cm it is 2 percent. That is why the analyzer asks for several runs and shows how far apart they are.

Three other things can bend the number, and the analyzer handles each one:

  • Pointer speed and acceleration. In Chrome and Edge the page asks for raw input, which skips them completely. In other browsers it warns you, because your system settings get mixed in.
  • Display scaling. Browsers that do not give raw input report movement in scaled pixels. The analyzer corrects for your screen's pixel ratio, and you can override that in the advanced settings.
  • Diagonal movement. The analyzer measures the straight line between start and end, so a ruler that sits a little crooked on the pad does not matter.

Mouse sensors themselves are rarely exactly on their label. A gap of a few percent between the setting and the measured value is normal. The mouse DPI test page is built for checking exactly that.

Why would I want to know my real DPI?

Three reasons come up again and again. You copied a pro player's settings and they feel wrong. You switched to a new mouse and want the same feel as the old one. Or your mouse has no software and no label, and you simply want to know. In each case the measured number is the one that matters, because that is what your games actually receive.

Once you have it, the sensitivity converter keeps your aim the same across games, and the polling rate test checks the other number on the box, the report rate in Hz.

Other ways to check mouse DPI

If your mouse has a maker's app, it shows the DPI setting directly. The spec sheet lists the default. Neither tells you what the sensor really does, which is why a measured test is useful even when you know the setting. Our guide on how to check mouse DPI walks through every method on Windows and Mac.

Frequently asked questions

How do I find out my mouse DPI?
Move your mouse a known distance and divide the counts it reports by that distance in inches. The DPI analyzer above does the counting for you; your mouse maker's app or spec sheet shows the setting it claims.
How accurate is this DPI analyzer?
The counting is exact, so accuracy depends on how exactly you move the distance. Over 10 cm, a 1 mm slip changes the result by 1 percent. If three runs land within a couple of percent of each other, you can trust the average.
Why is my measured DPI different from the number on the box?
Sensors are rarely exactly on their label, and a gap of a few percent is common. A larger gap usually comes from pointer acceleration, a pointer speed other than 6 of 11 on Windows, display scaling, or an inexact distance.
Does this work on a Mac?
Yes, in Chrome or Edge on macOS the test reads raw mouse movement. Safari and Firefox include macOS pointer acceleration, so the result there is less reliable.
Does the DPI test work on a phone or a tablet?
No. A touchscreen has no DPI in this sense. Open the page on a computer with the mouse you want to test.
Is DPI the same as CPI?
Yes, for a mouse they mean the same thing. CPI (counts per inch) is the more exact name, and DPI is what most makers print on the box.
Is DPI the same as sensitivity?
No. DPI is set in the mouse; sensitivity is a multiplier in the game or the operating system. Together they decide how far you turn per inch, which is what eDPI captures.
Is my data uploaded?
No. The test runs in your browser and only counts movement while you measure. We store no measurements; we only count anonymously that a test was completed.

Guides

How to Check Mouse DPI on Windows and MacThe maker's app, the spec sheet, the DPI button, or a measured test. Step by step for Windows and Mac. What DPI Should I Use for Gaming and Work?Shooters, MOBAs, office work and high resolution screens. Why the in-game sensitivity matters more than the DPI. How the measurement worksThe method, its limits, and who runs this site.

Measure the rest of your setup

Small tools that run in your browser. DPI first, then the numbers that depend on it.

Polling rate testSee how many reports per second your mouse sends. eDPI calculatorDPI times sensitivity, plus your cm per 360. Sensitivity converterKeep the same aim when you switch games. What DPI should I use?Plain advice for games, work and big screens.