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The Ultimate Guide to Instagram Post Sizes in Pixels (2026 Edition)

Creating stunning content for Instagram is an art, but getting it to display crisp, clear, and uncropped is pure science. Nothing ruins a beautifully curated photo or video faster than Instagram’s compression algorithm aggressively chopping off the edges or turning your masterpiece into a blurry pixelated mess.

To keep your feed looking sharp and professional, you need to use the exact dimensions Instagram prefers. Here is your complete, go-to guide for Instagram post sizes in pixels.

1. Standard Feed Posts: The Core Formats

While Instagram used to be strictly square, you now have plenty of room to play with vertical and horizontal layouts. However, sticking to the optimal aspect ratios prevents the app from making unwanted cropping decisions for you.

• Square Posts (1:1 Aspect Ratio):
  • Optimal Size: $1080 times 1080$ pixels
  • Best for: Classic grid symmetry, product shots, and centered portraits.
• Vertical Posts (4:5 Aspect Ratio):
  • Optimal Size: $1080 times 1350$ pixels
  • Best for: Maximizing screen real estate in your followers’ feeds. This is the most recommended size for photos because it stops users from scrolling past too quickly.
• Horizontal / Landscape Posts (1.91:1 Aspect Ratio):
  • Optimal Size: $1080 times 566$ pixels
  • Best for: Cinematic landscapes or wide architectural shots, though they take up less vertical space on the screen.

Pro Tip: Always export your feed images at a width of 1080 pixels. If you upload something smaller, Instagram will stretch it, causing blurriness. If you upload something much larger, the platform will compress it heavily.

2. Instagram Stories & Reels: Full-Screen Impact

Vertical video and ephemeral content dominate engagement on Instagram. Both Stories and Reels occupy the exact same vertical screen space.

• Optimal Size: $1080 times 1920$ pixels (9:16 Aspect Ratio)
• Safe Zones:
  • Keep important text, stickers, and logos away from the very top and bottom (leave about 250 pixels free at the top and bottom).
  • Instagram overlays interface elements like your username, caption, and action buttons in these areas, so critical content risk being hidden if it’s placed too close to the edges.

3. Carousel Posts: Consistency is Key

Carousels allow you to share up to 10 images or videos in a single post. The golden rule here is consistency:

• All images or videos within a single carousel post must match the same aspect ratio.
• If your first image is a vertical $1080 times 1350$ pixel graphic, every subsequent slide needs to be formatted to those exact same dimensions so the viewer doesn’t experience jarring layout shifts as they swipe.

Quick Reference Cheat Sheet

| Post Type | Aspect Ratio | Optimal Resolution (Pixels) |
| :— | :— | :— |
| Square Feed Post | 1:1 | $1080 times 1080$ |
| Vertical Feed Post | 4:5 | $1080 times 1350$ |
| Horizontal Feed Post | 1.91:1 | $1080 times 566$ |
| Stories & Reels | 9:16 | $1080 times 1920$ |
| Profile Picture | 1:1 | $320 times 320$ (minimum) |

Summary Checklist for Perfect Uploads

1. Shoot or design at 1080px wide: This is the magic number for high-definition rendering on modern smartphones.
2. Export in sRGB color profile: This ensures your colors look vibrant and accurate across both Apple and Android devices.
3. Mind the crop: Preview your image before hitting publish to ensure no vital elements fall victim to the automatic grid crop.

By aligning your content with these pixel dimensions, you ensure your visual branding remains polished, professional, and visually engaging.