Instagram post size. All images will be cropped to a square in the feed. The ideal size for square posts is 1080px by 1080px at a 1:1 aspect ratio. For landscape posts, use an image that is 1080px by 566px, with an aspect ratio of 1.91:1. Vertical images should be sized at 1080px by 1350px with a 4:5 aspect ratio.

Instagram landscape photo size Ideal landscape photo size: 1080 x 566 pixels, 1.91:1 aspect ratio. Perfect for group shots and scenery snaps, landscape photos are another method for uploading full-size photos. Getting the right horizontal photo dimensions, however, can be a bit of a challenge.

Kevin Systrom launched photo-sharing mobile phone app Instagram in 2010. Facebook bought Instagram for $1 billion in cash and stock in 2012, and Systrom stayed on to continue running it. He left Facebook in 2018.