Instagram Image Guidelines
Instagram is a very large, popular social media platform and is mainly based on people and businesses using visually appealing images. So that should be an indication of how important it is to follow their image size guidelines for best results.
Instagram Profile Picture: 110 x 110 px
Image appears on your profile at 110 x 110 pixels.
Square photo is recommended. Maintain image ratio of 1:1.
Photo Thumbnails: 161 x 161 px
The thumbnails appear on page at 161 x 161 pixels.
Square photo is recommended. Maintain a ratio of 1:1 ratio.
Photo Image Size: 1080 x 1080 px
The size of Instagram images was increased to 1080 x 1080 pixels.
Instagram will scale down these photos to 612 x 612 pixels.
Appears in a feed at 510 x 510 pixels.
Square or rectangle photos are recommended. Maintain a ratio between 1.91:1 and 4:5.
For the portrait photos, the recommended dimensions are 1080 x 1350 pixels.
The smaller featured header images appear as 204 x 204 pixels, and larger featured header images will appear as 409 x 409 pixels.
Instagram Stories: 1080 x 1920 px
The recommended resolution is 1080 x 1920 pixels.
Minimum resolution is 600 x 1067 pixels.
Image aspect ratio is 9:16.
Max image file size is 4 GB.