Instagram Dimensions Guide: Sizes for Posts, Reels & Stories

The Ultimate Guide to Instagram Dimensions: Keep Your Feed Looking Sharp

Whether you’re building a brand, sharing photography, or just posting memories with friends, nothing ruins a great photo faster than awkward cropping or blurry compression. Because Instagram dynamically resizes and optimizes content, knowing the exact dimensions you need is essential for making your posts look professional and eye-catching.

1. Feed Posts (The Main Grid)

While Instagram started out strictly as a square-sharing app, you now have a few different options for your standard feed posts.

• Portrait (Vertical):
  • Dimensions: 1080 x 1350 pixels
  • Aspect Ratio: 4:5
  • Pro Tip: This is the gold standard for feed posts. Because it takes up the most physical screen space as users scroll, vertical images naturally drive higher engagement.
• Square:
  • Dimensions: 1080 x 1080 pixels
  • Aspect Ratio: 1:1
  • Pro Tip: The classic choice. If you want a clean, uniform grid that never gets unexpectedly cropped on profile view, square is safe and reliable.
• Landscape (Horizontal):
  • Dimensions: 1080 x 566 pixels
  • Aspect Ratio: 1.91:1
  • Pro Tip: Great for wide landscape photography or cinematic shots, though they take up less vertical space on mobile screens.

2. Stories and Reels (Full-Screen Vertical)

Immersive, full-screen vertical content is the heart of discovery and day-to-day sharing on Instagram.

• Dimensions: 1080 x 1920 pixels
• Aspect Ratio: 9:16
• Pro Tip for Stories & Reels: Always keep your text, stickers, and key focal points within the “safe zones” (away from the very top and bottom edges). Instagram overlays app elements like your username, caption text, and interaction buttons in those areas, which can block important parts of your creative if they’re pushed too far to the margins.

3. Profile Pictures

Your profile picture is your digital handshake. Even though you can upload a high-resolution image, Instagram displays it as a tight circle.

• Dimensions: 320 x 320 pixels (minimum)
• Aspect Ratio: 1:1
• Pro Tip: Center your subject tightly. Because the corners are automatically cropped into a circle, any logos or faces placed too close to the edge risk getting cut off.

Quick Cheat Sheet

| Visual Type | Ideal Resolution (Pixels) | Aspect Ratio |
| :— | :— | :— |
| Portrait Post | 1080 x 1350 | 4:5 |
| Square Post | 1080 x 1080 | 1:1 |
| Landscape Post | 1080 x 566 | 1.91:1 |
| Stories / Reels | 1080 x 1920 | 9:16 |
| Profile Photo | 320 x 320 (or higher) | 1:1 |

A Final Note on Quality

Always try to export and upload your images at a width of 1080 pixels. If you upload files that are too small, Instagram will stretch them, causing pixelation. Conversely, if you upload massive files, Instagram’s automatic compression algorithm might degrade the quality unpredictably. Getting the dimensions right from the start ensures your content always looks crisp and clean!