Aspect Ratio Calculator

Aspect ratio is the proportional relationship between width and height (e.g., 16:9 means for every 16 units wide, the image is 9 units tall).

Use 'Calculate Dimension' mode, select 'Calculate Height', enter your width, choose a ratio, and click Calculate.

1080×1920 is a 9:16 aspect ratio — used by TikTok, Instagram Reels, and vertical videos.

Common 16:9 resolutions: 3840×2160 (4K), 1920×1080 (1080p), 1280×720 (720p).

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