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🖥️ Screen Size Calculator
Calculate the width and height of a screen from its diagonal size and aspect ratio.
How to Calculate Screen Dimensions
Screen diagonal, width, and height form a right triangle. Given the diagonal and aspect ratio, width = diagonal × ratio_width / √(ratio_width² + ratio_height²). This works for any display: monitors, TVs, tablets, or phones.
Common Screen Aspect Ratios
16:9 is the most common for TVs and monitors. 21:9 ultrawide monitors are popular for productivity and gaming. 4:3 was the old standard for CRT displays. 16:10 is common on laptops and tablets.
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