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Work · July 25, 2026

RulerInches

Your Digital Ruler for Every Screen

RulerInches launched on July 25, 2026 with 1 votes.

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What it does

RulerInches is a free online screen ruler that lets you measure objects in inches, centimeters, millimeters, and pixels with high accuracy. It works on phones, tablets, laptops, and desktops using smart calibration and device detection—no download required.

Free online screen ruler calibrated to your device. Measure physical objects in inches (in), centimeters (cm), and millimeters (mm) at 100% actual size without app downloads.

This screen ruler renders physical dimensions accurately by automatically identifying popular devices using their screen metrics (resolution, aspect ratio, devicePixelRatio, and User Agent hints) and applying their actual native PPI (Pixels Perfrom rulerinches.com

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