What is a 16:9 aspect ratio?

16:9 is the standard widescreen ratio used by HDTVs, YouTube, and most modern monitors. For every 16 pixels of width there are 9 pixels of height.

What ratio is Instagram square?

Instagram square posts use a 1:1 ratio (1080×1080px). Portrait posts use 4:5 (1080×1350px).

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Aspect Ratio

Calculate the simplified aspect ratio and scale dimensions proportionally.

Original width (px)

Original height (px)

Then enter one of the following to scale proportionally:

New width (px)

New height (px)

Common ratios

Common Aspect Ratios

16:9 is the universal widescreen standard. 4:3 was the pre-HD TV standard. 21:9 is an ultra-wide cinematic ratio. 9:16 is the portrait format for smartphone videos and stories. 1:1 is square, used in social media thumbnails.

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