Aspect Ratio Calculator
Find an aspect ratio, or the matching height or width for a new size.
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Keeping the ratio the same when resizing stops images and video looking stretched. Enter your original size, then a new width or height to get the other.
Questions
Best sizes for social?
9:16 for Reels, TikTok and Stories (1080×1920); 4:5 for portrait feed posts (1080×1350); 1:1 square (1080×1080); 16:9 for YouTube.