Social Media Image Sizes & Aspect Ratios
Social platforms use different image shapes for posts, stories, thumbnails and profile graphics. Always verify current platform specifications before publishing because recommendations can change.
Useful aspect ratios
1:1 for square graphics, 4:5 for portrait feeds, 9:16 for vertical stories and short-form video, and 16:9 for widescreen video.
Calculate custom dimensionsPrevent unwanted cropping
Start with the required aspect ratio, then calculate dimensions that fit the platform's pixel recommendations. If a platform crops an image, preserving the important subject near the safe area can reduce surprises.