Social media size guide.
Every video and image spec, in one place. Pick a platform, grab the exact dimensions, aspect ratio, and length limit. No sign-up, nothing to install.
Reels
9:16Keep titles and CTAs inside the central safe area; edges get covered by the UI.
Stories
9:16Top ~250px and bottom ~310px sit under the interface.
Feed (portrait)
4:5Tallest the feed allows, best footprint for reach.
Feed (square)
1:1The safe classic, works in any grid.
Feed (landscape)
1.91:1Smallest footprint in feed, skip it for organic.
Video
9:16Right side and bottom are covered by buttons and the caption.
Photo carousel
9:16Video
16:9Standard horizontal. 4K masters at 3840 x 2160.
Shorts
9:16Thumbnail
16:9Keep text large; it has to read at a tiny size.
Feed video (square)
1:1Square tends to win the LinkedIn feed.
Feed video (vertical)
9:16Feed image
1.91:1Reels / Stories
9:16Feed video
1:1Feed image
1.91:1Video
16:9Image (landscape)
16:9Aspect ratio calculator.
Lock a ratio, type one side, get the other. Handy for resizing a master into every format.
Ratio 16:9
Knowing the size won't make the video.
That part's on whoever makes the video. Which, conveniently, is us.
See how it works