Best Instagram Square Image Size 2026 – 1080×1080 Guide

The best Instagram square image size in 2026 is still 1080×1080 pixels for feed posts. Instagram recommends this resolution for sharp display on all devices without unnecessary file size. For extra quality headroom, 1200×1200 is also widely used and looks great.

Why 1080×1080?

• Native fit: Instagram displays feed posts at 1080px on the long side; 1080×1080 matches exactly.
• No downscaling: Uploading at 1080×1080 avoids compression artifacts from resizing.
• File size: Keeps file size reasonable for fast loading and saving.

Profile Pictures and Stories

• Profile pictures: Use 320×320 minimum; 512×512 or 1024×1024 for best quality. Instagram crops to a circle.
• Stories/Reels: 1080×1920 (9:16) is standard; for square Reels, 1080×1080 works.

Quick Checklist

• Feed posts: 1080×1080 or 1200×1200
• Profile: 512×512 or 1024×1024
• Export as JPG or WEBP for smaller files

See our Square image sizes guide for all platforms, and use the free Square Image Tool to create perfectly sized square images.