- Mouse Spin Test
- Aim Trainer
- Frame Rate Test (FPS Test)
- Verbal Memory Test
- Spacebar Counter
- Mouse Accuracy Test
- Mouse Latency Test
- Mouse Scroll Wheel Test
- Number Memory Test
- Reaction Time Test
- Mouse Drift Test
- Draw a Perfect Circle
- Mic Test
- Screen Color Test
- Mouse Drag Test
- Screen Refresh Rate Test
- Color Blind Test
- Keyboard Ghosting Test
Free Mouse DPI Test Online
Not sure what DPI your mouse is really running at? This Mouse DPI Test measures it for you. Enter a distance, move your mouse that far, and the tool shows how many pixels the cursor moved and your calculated DPI.
What Is Mouse DPI?
DPI stands for dots per inch. It describes how many pixels your cursor moves on screen for every inch you physically move the mouse.
- Low DPI (for example, 400): the cursor moves slowly and needs more hand movement.
- High DPI (for example, 1600): the cursor moves faster and needs less hand movement.
Many mice list a DPI value on the box or in their software. This tool lets you check what you actually get in use.
How to Use the Mouse DPI Test
- Set the distance. Type a number in the Distance box, or use the – and + buttons. The default is 10.
- Choose your unit. Pick a unit from the Units dropdown. It is set to Inches by default.
- Start measuring. Click anywhere in the black area. It reads “Start measuring by clicking anywhere.”
- Move your mouse. Move it the exact distance you entered. A ruler or tape measure on your desk helps.
- Read your results. The Pixels Moved box shows how far the cursor traveled in pixels. The DPI box shows the calculated DPI.
How the DPI Is Calculated
DPI is pixels moved divided by the physical distance. For example:
- You enter 10 inches.
- The cursor moves 8,000 pixels.
- 8,000 ÷ 10 = 800 DPI.
The more accurately you move the mouse the distance you entered, the more accurate the result.
Tips for a More Accurate DPI Reading
- Use a real ruler. Estimating by eye is the biggest source of error.
- Match the unit to your ruler. If your ruler is in centimeters, set the Units dropdown to match.
- Move in a straight line. Wandering paths make it harder to judge the real distance.
- Use a longer distance. A bigger distance such as 10 makes small hand errors matter less than a short one.
- Repeat the test. Run it two or three times and compare the results.
- Keep the mouse on the pad. Lifting the mouse mid-test can skew the reading.
Why Test Your Mouse DPI?
- Check the advertised DPI. Confirm your mouse matches the number on the box or in its software.
- Verify DPI button settings. If your mouse has a DPI switch, test each level to see what it does.
- Match setups. Compare two mice or two computers to get the same cursor feel.
- Keep your aim consistent. Gamers often want the same DPI across devices.
- Troubleshoot movement. If your cursor feels too fast or too slow, a DPI reading can help you narrow down the cause.
Why Your Result May Differ From the Advertised DPI
A different number than expected does not always mean something is wrong with your mouse. Possible reasons include:
- Your DPI setting in the mouse software differs from what you assumed.
- Your operating system’s pointer speed or acceleration settings change how far the cursor moves.
- The distance you moved was not exactly the distance you entered.
If your result looks far off, check your mouse software and pointer settings, then test again.
Frequently Asked Questions
What does “Pixels Moved” mean?
It is the number of pixels the cursor traveled while you were measuring. The tool uses this number, together with your distance, to calculate DPI.
Why is my DPI result very low?
A low result usually means the mouse moved less than the distance you entered. For example, a short movement tested against a 10-inch setting gives a small number. Make sure you move the full distance, or lower the Distance value to match what you actually moved.
Can I test a distance other than 10?
Yes. Change the Distance value by typing a number or using the – and + buttons. Enter the same distance you plan to move the mouse.
Should I use inches or another unit?
Use whichever unit your ruler or tape measure uses. Just make sure the Units dropdown matches it.
Will I get the exact same number every time?
Not always. Small differences in how you move the mouse can change the result. Running the test a few times gives you a better idea of your real DPI.
Is DPI the same as mouse sensitivity?
Not exactly. DPI is a hardware-level measure of how far the cursor moves per inch of mouse travel. Sensitivity settings in your operating system or in a game can change the cursor or aim speed further, even at the same DPI.
Do I need to install anything?
No. The test runs on the page. Enter your distance and click the measuring area to begin.