Question 1

How does the pixel ruler work?

Accepted Answer

Move your mouse over the ruler area. Red guide lines track your cursor position, and the measurement readout shows the exact pixel, millimeter, and inch coordinates in real time.

Question 2

How do I calibrate the ruler for accurate mm/inch measurements?

Accepted Answer

Enter your screen's DPI (dots per inch) in the calibration field. You can find this in your monitor specifications. Most displays are 72-96 DPI; Retina displays are typically 192-227 DPI.

Question 3

Can I measure the distance between two points?

Accepted Answer

Yes. Click and drag on the ruler area to draw a measurement line. The tool shows the distance between your start and end points in pixels, mm, and inches.

Question 4

Does this work on mobile devices?

Accepted Answer

The ruler works on touch devices but accuracy may vary due to different pixel densities. For best results, use a desktop monitor with known DPI specifications.