Instagram Post Size Dimensions

Can anyone help me understand the correct Instagram post size dimensions? I keep hearing different numbers for square, portrait, and landscape posts, and I want to make sure my uploads look clear and professional. If you know the ideal dimensions or have tips for optimizing image quality, I’d really appreciate your advice!
 
The optimal dimensions for the most common Instagram post formats are:
  • Portrait (Best Engagement): 1080 x 1350 pixels (4:5 ratio).
  • Square: 1080 x 1080 pixels (1:1 ratio).
  • Stories/Reels (Full Screen): 1080 x 1920 pixels (9:16 ratio).
 
The sizes of post in Instagram are 1080 1080 x square, 1080 1350 x portrait, and 1080 608 x landscape. Instagram stories and reels have a size of 1080 x 1920. The aspect ratio of 1:1, 4:5 and 16:9 is also important so that the posts can be clearly viewed and appear professional in various devices.
 
The‍‌‍‍‌‍‌‍‍‌ perfect post sizes for Instagram are quite straightforward: squares posts are the most effective at 1080×1080, portrait posts are neat at 1080×1350, and landscape posts at 1080×566; all you need to do is maintain your pictures in a 1:1, 4:5, or 16:9 ratio correspondingly, and continue to save in high resolution (JPG or PNG) to prevent compression from happening if you want your posts to look as if they are from a professional and are ‍‌‍‍‌‍‌‍‍‌sharp.
 
Instagram post size dimensions vary by format. Square posts use 1080 × 1080 px, while portrait posts use 1080 × 1350 px for better screen space. Landscape posts are 1080 × 566 px. For best quality, upload high-resolution images in a 1:1, 4:5, or 16:9 ratio. Instagram compresses low-quality uploads.
 
The recommended Instagram post size is 1080 × 1080 pixels for square posts. Portrait posts work best at 1080 × 1350 pixels, while landscape posts use 1080 × 566 pixels. Using correct dimensions ensures clear images, avoids cropping, and maintains visual quality across Instagram feeds.
 
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