Which Instagram size to use
Portrait 1080 × 1350 (4:5) takes up the most space in the feed and is usually the best choice for posts. Square 1080 × 1080 is the classic format and is how your grid displays thumbnails. Stories and Reels covers are 1080 × 1920 (9:16). Landscape 1080 × 566 is available too, but appears smallest in the feed.
