Aspect ratio (image)

This article is about aspect ratio of still images, films, and digital imagery. For display aspect ratio, see Display aspect ratio. For other uses, see Aspect ratio (disambiguation).

The aspect ratio of an image is the ratio of its width to its height. It is expressed as two numbers separated by a colon, in the format width:height. Common aspect ratios are 1.85:1 and 2.39:1 in cinematography, 4:3 (originally) and 16:9 in television, and 3:2 in still photography. The 1:1 aspect ratio is used for square images, often seen on social media platforms like Instagram, and 21:9 is an "ultrawide" aspect ratio popular for gaming and desktop monitors.

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