The Ultimate Guide to Instagram Post Sizes in Pixels

Ever uploaded a photo that looked crystal-clear on your camera roll, only to watch Instagram automatically crunch it into a blurry, cropped mess? The secret to keeping your feed looking professional, sharp, and intentional isn’t just about having a great camera—it is about hitting the exact pixel dimensions that Instagram’s algorithm loves.

When you upload media that matches Instagram’s native aspect ratios, you prevent the app from aggressively compressing or awkwardly cropping your hard work.

Quick Reference: Instagram Size Cheat Sheet

For a quick look at what you need, use this handy guide for all major Instagram formats:

| Format Type | Aspect Ratio | Optimal Resolution (Pixels) |
| :— | :— | :— |
| Square Feed Post | 1:1 | 1080 x 1080 px |
| Portrait Feed Post | 4:5 | 1080 x 1350 px |
| Landscape Feed Post | 1.91:1 | 1080 x 566 px |
| Instagram Stories & Reels | 9:16 | 1080 x 1920 px |
| Profile Picture | 1:1 | 320 x 320 px (display size) |

1. Feed Posts: Choosing Your Canvas

While square images used to be the only option on Instagram, creators now have three main choices for the main feed.

• Square (1080 x 1080 px): The classic choice. Perfect for symmetrical photography, brand logos, and a clean, uniform grid layout.
• Portrait / Vertical (1080 x 1350 px): The crowd favorite. Portrait posts take up the most vertical screen real estate on a user’s phone screen, making people linger on your post longer while scrolling. If you want maximum engagement, use this size.
• Landscape / Horizontal (1080 x 566 px): Great for cinematic landscape shots or wide-angle photography. Keep in mind that landscape images have extra white space or black bars added above and below them on the grid view.

2. Immersive Content: Stories and Reels

Vertical full-screen content dominates modern social media usage. Whether you are sharing a quick behind-the-scenes moment or launching a viral Reel, your vertical video dimensions matter.

• Stories & Reels (1080 x 1920 px): This fills a modern smartphone screen completely from top to bottom (9:16 aspect ratio).
• The Safe Zone Rule: For Reels and Stories, avoid placing crucial text, captions, or stickers right at the very top or bottom. Instagram overlays your profile name, caption, sound track title, and engagement buttons (like, comment, share) in these areas. Keep your core content centered vertically to ensure it never gets blocked.

3. Pro Tips for Crisp, Unblurry Uploads

Knowing the right pixel size is half the battle; the other half is making sure Instagram doesn’t ruin your image quality during the upload process.

• Stick to the Width Baseline: Always design your images with a width of 1080 pixels. Instagram will automatically shrink images that are wider than 1080px, which often introduces compression artifacts. If your image is too small (