Instagram Post Size Guide
Instagram supports three feed post formats. The most popular is the square 1080×1080 px, but portrait (4:5) gets more screen real estate in the feed.
📐 Instagram Post Dimensions
| Format | Dimension | Aspect Ratio | Best For |
|---|---|---|---|
| Square | 1080 × 1080 px | 1:1 | Profile grids, products |
| Portrait | 1080 × 1350 px | 4:5 | Max feed space, portraits |
| Landscape | 1080 × 566 px | 1.91:1 | Panoramas, wide shots |
⚡ Max file size: 8 MB for photos. Recommended format: JPG for photos, PNG for graphics.
💡 Tips for Perfect Instagram Posts
Use Portrait (4:5) ratio — it takes up the most vertical space in the feed, increasing visibility.
Keep important content within the safe center area — Instagram may crop thumbnails in the grid to 1:1.
Keep image file size under 1 MB for fastest loading and no quality loss from Instagram's re-compression.
Instagram re-compresses images automatically. Start with high quality (JPG 85–95%) to minimize artifact buildup.
🛠️ Resize Your Images for Free
❓ FAQ
What is the best Instagram post size?
Portrait 1080×1350px (4:5 ratio) takes up the most space in the feed and generally performs best for engagement.
Does Instagram resize my images?
Yes, Instagram automatically resizes and compresses images. Upload at 1080px wide for best quality.
What is the safe zone for Instagram posts?
Always keep essential content in the center 1:1 square (1080×1080) as the grid always shows a square crop.
Can I post a 16:9 image on Instagram?
Yes, but Instagram may crop it to fit the supported ratios. Use landscape (1.91:1) format instead.