Free 21:9 Aspect Ratio Calculator

Calculate dimensions for the 21:9 ratio instantly. Ideal for cinema, social media, and professional photography.

Aspect Ratio Calculator

Calculate aspect ratios, resize dimensions, and detect ratios from images. Perfect for designers and social media.

Presets

Ratio Width

Ratio Height

Calculate Dimensions

Width (px)

Height (px)

1920 x 1080

21:9

Using the 21:9 Aspect Ratio

The 21:9 aspect ratio is a standard in many industries. 21:9 is an ultrawide cinematic ratio, providing a more immersive field of view for gaming and widescreen movies.

Common Resolutions for 21:9

Resolution Name	Width (px)	Height (px)
240p	560	240
360p	840	360
480p	1120	480
720p (HD)	1680	720
1080p (HD)	2520	1080
1440p (HD)	3360	1440
2160p (HD)	5040	2160

💡 Efficiency Hack: Use keyboard shortcuts to navigate between input fields quickly.

Last Verified: February 2026

Explore Other Ratios

16:9 ((HD Video))4:3 ((SD Video))1:1 ((Square/IG))9:16 ((Story/TikTok))4:5 ((IG Portrait))3:2 ((DSLR))5:4 ((Medium))3:1 ((Twitter Header))

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