Aspect ratio calculator and proportional resize
Find the ratio of a size (1920×1080 = 16:9) or enter a new width to get the height that keeps the proportions.
About Aspect ratio calculator
Enter the original width and height to get the simplified ratio (16:9) and decimal ratio (1.78:1). Then fill in a new width or height to get the other side without distortion.
Common sizes are listed below, such as YouTube thumbnails 1280×720, Instagram posts 1080×1350 and stories 1080×1920.
FAQ
What ratio is 1080×1350?
4:5 — Instagram's portrait post.
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