Instagram Post Size in Pixels: Dimensions Guide

Mastering Instagram Post Size in Pixels: The Ultimate Guide for 2026

Whether you are a budding creator, a small business owner, or a seasoned social media manager, one thing remains universally true: visuals are the heartbeat of Instagram.

However, there is nothing more frustrating than spending hours crafting the perfect photo or graphic design, only to upload it to Instagram and watch the platform brutally crop, stretch, or blur your masterpiece.

To ensure your content always looks crisp, professional, and eye-catching, you need to use the exact right dimensions. Here is your complete, up-to-date guide to Instagram post sizes in pixels for every format available on the platform.

Why Instagram Image Dimensions Matter

Instagram uses automated compression algorithms to save storage and optimize load times across millions of mobile devices. If your image is too large, Instagram will aggressively resize it, often introducing pixelation. If your image is too small, the platform will stretch it, ruining your sharp details.

Sticking to the ideal pixel dimensions and aspect ratios ensures that:

• Your text and vital design elements never get cut off by profile UI overlays.
• Your images retain maximum sharpness and color fidelity.
• Your grid profile looks cohesive, clean, and intentional.

1. Instagram Feed Posts (Standard Grid)

The traditional Instagram post is no longer restricted to a strict square, giving you more creative freedom. Here are the three main options for feed posts:

| Post Type | Aspect Ratio | Ideal Resolution (Pixels) |
| :— | :— | :— |
| Square | 1:1 | 1080 x 1080 px |
| Vertical (Portrait) | 4:5 | 1080 x 1350 px |
| Horizontal (Landscape) | 1.91:1 | 1080 x 566 px |

• Pro Tip for Feeds: While landscape images are supported, Portrait (4:5) is widely considered the gold standard for creators and brands. It takes up the most vertical real estate on a user’s phone screen as they scroll through the feed, resulting in higher engagement and longer viewing times.

2. Instagram Stories and Reels

Vertical, full-screen content dominates modern consumption habits. Both Stories and Reels share the exact same screen dimensions.

• Aspect Ratio: 9:16
• Ideal Resolution: 1080 x 1920 px

Crucial Design Rule for Stories & Reels: Keep your important text, stickers, and calls-to-action (CTAs) within the “safe zone.” Leave about 250 pixels free at the top and bottom of your design. This ensures your content is never obscured by the user’s profile picture, username, caption overlays, or bottom action buttons.

3. Instagram Carousels

Carousels allow you to share up to 10 images or videos in a single post.

• The Golden Rule: Whichever aspect ratio you choose for your first slide (Square 1:1 or Portrait 4:5), all subsequent slides must match it. Instagram will automatically crop all slides to match the dimensions of the very first image.
• Pro Tip for Panoramic Carousels: If you want to create a seamless, scrolling panoramic effect across multiple slides, keep the height at 1350 pixels and multiply the width by the number of slides (