Mouse DPI Test & DPI Checker Online
Estimate your mouse DPI by moving a known physical distance. Use a ruler to measure, then move your mouse—we calculate approximate DPI.
Use our free mouse DPI checker to measure your effective mouse sensitivity. This DPI test works in any browser—calibrate with a ruler, drag the hand to the target, and get your DPI instantly.
Mouse DPI Test & DPI Checker
Move your mouse the specified distance to measure your DPI. Set your target distance and drag the caret from start to finish.
Click and drag the green hand from the start to the red target line to measure your DPI.
Pixels
0
Target
5"
DPI
0
Calibration
Adjust until the bar equals 2" on your physical ruler. This improves accuracy for different displays.
This bar should measure 2" on your physical ruler
DPI Results
Release the caret to calculate. Multiple tests improve accuracy.
No results yet. Drag the caret to see your DPI measurements.
Tips for Accurate Testing
- Ensure browser is at 100% zoom level
- Test multiple times and use the average
- Drag the caret in a straight line
- Use longer distances (5+ inches) for better accuracy
- Disable mouse acceleration in your OS settings
- Calibrate your display first using a physical ruler
About this test
This measures effective DPI (how your mouse behaves on screen), not hardware DPI. Results vary with OS sensitivity, acceleration, and display scaling.
How to run a mouse DPI test
- Calibrate first: adjust the px/in slider until the bar matches 2" on your physical ruler.
- Select your target distance (e.g. 5") and drag the green caret from start to the red target line.
- Release the caret to calculate. Your DPI will appear. Run multiple tests and use the average for best accuracy.
This measures effective DPI (how your mouse behaves on screen). Results are affected by OS sensitivity and display scaling.
Mouse DPI Test FAQ
What is a mouse DPI checker?
A mouse DPI checker is a tool that measures your effective mouse sensitivity (DPI) by tracking cursor movement over a known physical distance. Our DPI checker works in the browser—no download needed.
What is mouse DPI?
DPI (dots per inch) measures how many pixels the cursor moves per inch of physical mouse movement. Higher DPI means more sensitivity.
Can I test mouse DPI online?
Yes. Our mouse DPI checker estimates DPI by tracking pointer movement over a known distance. Calibrate with a ruler first for best accuracy.
Why is my estimated DPI different from my mouse settings?
OS sensitivity, acceleration, and display scaling affect the result. This DPI checker measures effective sensitivity, not raw hardware DPI.