The Ultimate Guide to Instagram Post Sizes in Pixels

Picture this: You spend hours designing a stunning graphic or editing a breathtaking photo, only to hit publish and watch Instagram violently crop out your headline, blur your crisp lines, or add awkward white borders. Frustrating, right?

Getting your visuals to look sharp and professional on Instagram isn’t just about good photography or graphic design—it’s about mastering pixel dimensions. Because Instagram automatically compresses and scales uploads, designing to the exact right canvas size ensures your content looks pristine on every screen.

This complete reference guide covers everything you need to know about Instagram post sizes in pixels, helping you maximize your screen real estate and keep your grid looking immaculate.

Quick-Reference Cheat Sheet

Whether you are building a carousel, a Reel, or a profile refresh, use this handy breakdown of dimensions (measured in width by height):

| Placement | Aspect Ratio | Recommended Size (Pixels) | Best Used For |
| :— | :— | :— | :— |
| Feed Portrait (Recommended) | 4:5 | 1080 x 1350 px | Everyday posts, educational carousels, portraits |
| Tall Grid Post | 3:4 | 1080 x 1440 px | Grid-only banners and puzzle layouts |
| Square Post | 1:1 | 1080 x 1080 px | Cross-platform sharing, product catalogs |
| Landscape Post | 1.91:1 | 1080 x 566 px | Cinematic travel shots, wide landscape photos |
| Stories & Reels | 9:16 | 1080 x 1920 px | Full-screen vertical video and immersive graphics |
| Profile Picture | 1:1 | 320 x 320 px (minimum) | Brand logos, headshots |

1. Feed Post Sizes

The feed is where your brand’s personality shines. Choosing the right aspect ratio determines how much attention your post commands as users scroll past.

Portrait Posts (4:5 Ratio)

• Dimensions: 1080 x 1350 pixels
• The Verdict: This is the gold standard for feed posts. A 4:5 vertical layout takes up the maximum allowable vertical real estate on mobile screens, pushing competitor content out of view and capturing user attention far longer than a square post.

Tall Grid Posts (3:4 Ratio)

• Dimensions: 1080 x 1440 pixels
• The Verdict: Instagram profile grids display tiles in a 3:4 ratio. While 1080 x 1350 pixels is still the safest bet for everyday scheduling tools, using 1080 x 1440 pixels allows manual publishers to build seamless, edge-to-edge grid puzzles and multi-post banners.

Square Posts (1:1 Ratio)

• Dimensions: 1080 x 1080 pixels
• The Verdict: The classic square post will always have a place on Instagram, but it occupies less vertical space than portrait alternatives. Save this format primarily for uniform product catalogs or when you are cross-posting identical assets across multiple social channels.

Landscape Posts (1.91:1 Ratio)

• Dimensions: 1080 x 566 pixels
• The Verdict: Horizontal landscape images have the smallest footprint in the feed. Use them sparingly—ideally for cinematic landscapes, group photos, or wide screenshots where cropping would ruin the composition.

2. Full-Screen Vertical Formats: Stories and Reels (9:16)

For immersive, high-engagement content like Stories and Reels, the standard is strictly vertical.

• Dimensions: 1080 x 1920 pixels
• Why it matters: Designing at a width of 1080 pixels ensures your videos and graphics render sharply on high-density smartphone screens without getting pixelated or stretched.

Pro Tip for Stories & Reels: Always design with safe zones in mind. Instagram overlays UI elements—such as your profile name, caption text, music stickers, and engagement buttons—around the edges of the screen. Keep your primary text, subtitles, and focal points away from the top 15% and bottom 20% of the canvas so they never get obscured.

3. Profile Pictures and Highlight Covers

First impressions count, and your profile details anchor your overall aesthetic.

• Profile Picture: Upload an image at least 320 x 320 pixels. Remember that Instagram crops your profile photo into a circle, so center your logo or face tightly with plenty of breathing room around the edges.
• Story Highlight Covers: Design these at 1080 x 1920 pixels (using a centered icon on a background color) or 1080 x 1080 pixels. Clean, uniform highlight covers give your profile page a polished, boutique look.

Summary Best Practices for 2026

• Lock in a width of 1080 pixels: Even if you upload higher-resolution files, Instagram will scale them down. Starting at 1080 pixels wide prevents unexpected compression artifacts.
• Stick to JPEG or PNG: For static images, aim for file sizes under 10 megabytes to ensure seamless loading.
• Prioritize Portrait: When in doubt for general posts, default to 1080 x 1350 pixels to command maximum screen space and keep your audience hooked.