What is Mouse DPI?

DPI (Dots Per Inch) measures how many pixels your cursor moves on screen when you move your mouse one inch. A higher DPI means your cursor moves further with less physical mouse movement, while a lower DPI provides more precision with greater physical movement.

Many gaming mice advertise their DPI capabilities, but the actual DPI can vary from the advertised values. This tool helps you measure your mouse's true DPI setting, allowing you to:

  • Verify manufacturer claims
  • Find your optimal sensitivity
  • Ensure consistent settings across different devices
  • Calibrate your mouse for specific games or applications

Measure Your Mouse DPI

Follow the steps below to accurately measure your mouse's DPI setting.

1
Calibration
2
Measurement
3
Results

Step 1: Calibrate Your Screen

To get accurate measurements, we need to calibrate the tool to your screen size.

Credit Card Method

Place a standard credit card (85.60 × 53.98 mm) on your screen and adjust the rectangle below to match its size.

85.60 mm
53.98 mm
Manual Entry

If you know your screen's pixel density (PPI), enter it directly:

Common values: 96 PPI (standard), 109 PPI (laptops), 220+ PPI (high-DPI displays)

Step 2: Measure Your Mouse Movement

Move your mouse exactly 1 inch (2.54 cm) in the real world and we'll measure how many pixels it travels on screen.

1
Place your mouse at the starting position and press the mouse button
2
Move your mouse exactly 1 inch (2.54 cm) horizontally
3
Release the mouse button at the ending position
Start Here
End Here
Click and hold at the starting point, then move 1 inch
Horizontal DPI (X-axis):
-
Test Count: 0/3

Step 3: Your DPI Results

Based on your measurements, here are your mouse DPI settings:

0
Average DPI
0
X-Axis DPI
0
Y-Axis DPI
0%
Consistency
How Your DPI Compares
Low Medium High Ultra
400
800
1600
3200+
Recommended DPI Settings
FPS Games

400-800 DPI with low in-game sensitivity

Strategy Games

1000-1600 DPI for faster map navigation

Design Work

800-1200 DPI for precision editing

General Use

800-1200 DPI for everyday computing

Tips for Accurate DPI Measurement

  • Use a ruler or measuring tape: Place it next to your mousepad to ensure you're moving exactly 1 inch
  • Disable mouse acceleration: Make sure mouse acceleration is turned off for accurate results
  • Test multiple times: Take the average of several measurements for better accuracy
  • Test both axes: Some mice have different DPI settings for horizontal and vertical movement
  • Use a consistent surface: The same surface you normally use your mouse on

Common Issues & Solutions

Results vary between tests

If your DPI measurements are inconsistent:

  • Make sure mouse acceleration is disabled
  • Check if your mouse has a "snapping" or "angle snapping" feature enabled
  • Try using a ruler to ensure consistent 1-inch movements
  • Some mice have variable DPI depending on movement speed
  • Test on different surfaces to see if that affects the results
DPI is much lower/higher than advertised

If your measured DPI differs significantly from what's advertised:

  • Check if your mouse has DPI adjustment buttons or software
  • Verify that Windows mouse speed is set to the 6th notch (default)
  • Some manufacturers exaggerate DPI specifications
  • Ensure the calibration was done correctly
  • Try reinstalling mouse drivers or updating firmware
Calibration issues

If you're having trouble with the calibration:

  • Try using the manual PPI entry if you know your screen's pixel density
  • For the credit card method, make sure the card is flat against the screen
  • Some screens have unusual scaling that can affect measurements
  • If using Windows, check your display scaling settings (should be 100%)
  • Try a different browser if you encounter rendering issues