Instagram supports three types of feed posts: square, landscape, and portrait. Here’s a breakdown of ideal image sizes for each type of post. Here’s an easier way to think of it: Instagram aspect ratio refers to the shape of your post (square, vertical rectangle, or horizontal rectangle), while image size refers to the resolution/quality of the image file.īecause Instagram has various post types, there is not a single best image size for Instagram. For example, Instagram square post dimensions are 1080 x 1080 px, which is also a 1:1 aspect ratio. Instagram image size refers to the image’s resolution - the number of pixels (px) in the height and width of your photo. The recommended Instagram aspect ratio for a landscape post, on the other hand, is 16:9. For example, a square image has a 1:1 aspect ratio because the width and height are the same. Aspect ratio refers to the ratio of width to height.

When you search for the best image size for Instagram, you’ll find references to pixels as well as the ideal Instagram aspect ratio for each post type.

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