Have you ever imagined that we can measure anything from Online Ruler? Now, you don't have to carry the physical ruler with you everywhere all the time. Just open our tool on any device and start measuring your object height, width, and length. Also, it allows you to take the measurements in millimeters, centimeters, and inches.

Printable Ruler. We provide all types of printable rulers in cm and inches in PDF format. Just download and print on paper to measure anything.

Example: Calculate the PPI for the screen width of 2040, height of 1080, and diagonal of 6.4 inches. Solution: Step 1: Find the diagonal in pixels.

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