Instagram Post Size Guide: Dimensions for Photos & Carousels

Master the Grid: The Ultimate Guide to Instagram Post Sizes

Ever spent hours designing a gorgeous graphic or editing the perfect photo, only to watch Instagram awkwardly chop off the top and bottom when you hit publish? It is a universally frustrating experience, but it usually comes down to one thing: pixel dimensions and aspect ratios.

Because Instagram is primarily browsed on vertical smartphone screens, getting your sizing right can mean the difference between a post that stops the scroll and one that gets completely ignored. This comprehensive breakdown covers every essential Instagram post size to keep your content looking sharp, professional, and perfectly framed.

1. Feed Posts: Square, Portrait, and Landscape

When you post a single image or video to your main feed, Instagram supports three primary aspect ratios. However, not all formats are created equal when it comes to capturing attention.

• Portrait (4:5 Aspect Ratio) — The Gold Standard
  • Recommended Size: $1080 times 1350$ pixels
  • Best for: Educational carousels, infographics, quotes, and product photography.
  • Why it wins: Portrait is widely considered the best format for the feed because it takes up the maximum vertical real estate on a phone screen. It pushes surrounding distractions out of view and forces users to slow down their scroll.
• Square (1:1 Aspect Ratio) — The Classic Choice
  • Recommended Size: $1080 times 1080$ pixels
  • Best for: Clean product catalogs, symmetrical photography, or times when you want a uniform look across your profile grid.
  • Why use it: While it doesn’t dominate the screen like portrait mode, it is reliable, predictable, and crops cleanly everywhere it appears.
• Landscape (1.91:1 Aspect Ratio) — Use with Caution
  • Recommended Size: $1080 times 566$ pixels
  • Best for: Cinematic landscape shots or wide event photography where cropping would ruin the composition.
  • The Catch: Landscape posts have the smallest footprint in the feed. Because they take up very little vertical space, users can easily scroll past them in a fraction of a second.

2. Full-Screen Vertical Content: Stories & Reels

For immersive, full-screen content, vertical video and photography are absolute requirements.

• Instagram Stories & Reels:
  • Dimensions: $1080 times 1920$ pixels ($9:16$ aspect ratio)
  • Pro Tip for Stories: Always leave about 250 pixels of padding at the top and bottom of your Story designs. This ensures that platform user interface elements—like your username at the top or reply boxes at the bottom—won’t block your text or graphics.
  • Pro Tip for Reels: While your video plays in a full $9:16$ ratio, keep important text, subtitles, and faces within a central vertical “safe zone”. When a Reel is shared to your main profile grid, it gets previewed as a vertical tile, so you want to make sure key details aren’t accidentally cut off.

Quick Reference: Instagram Size Cheat Sheet

| Format | Aspect Ratio | Recommended Size (Pixels) |
| :— | :— | :— |
| Portrait Feed Post | $4:5$ | $1080 times 1350$ |
| Square Feed Post | $1:1$ | $1080 times 1080$ |
| Landscape Feed Post | $1.91:1$ | $1080 times 566$ |
| Stories & Reels | $9:16$ | $1080 times 1920$ |
| Profile Picture | $1:1$ | $320 times 320$ (minimum) |

Top Rules for Avoiding Blurry or Cropped Posts

1. Stick to a Width of 1080px: Instagram automatically scales down massive files and stretches tiny ones (which makes them look pixelated and blurry). Designing your core assets at a width of 1080 pixels guarantees sharp clarity on modern mobile displays.
2. Mind the Grid Crop: Your profile grid displays preview tiles that crop rectangular images. Always keep important design elements, text, and logos centered so they don’t get clipped on your profile page.
3. Check File Limits: Keep your static image files well under the maximum file size limits (aim for under 10 MB) to ensure smooth uploading and avoid compression glitches.

By sticking to these dimensions, you’ll spend less time fighting with awkward crops and more time creating standout content that looks incredible anywhere it appears on the app.