Quick Answer: Instagram post sizes for 2026 are 1080×1080 (1:1 square), 1080×1350 (4:5 portrait), and 1080×566 (1.91:1 landscape). 4:5 is recommended by Instagram for feed posts and helps prevent cropping while maximizing engagement.
Instagram Post Size Guide (2026) – Perfect Dimensions, Ratios & Quality
Instagram post size: 1080×1080, 1080×1350 (4:5), 1080×566
Learn the exact Instagram post sizes for 2026: dimensions, aspect ratios, and quality settings to avoid cropping and maximize engagement. This guide covers square (1:1), portrait (4:5), and landscape (1.91:1) feed posts. Pair with our Instagram Story dimensions, Instagram caption generator, and best time to post on Instagram.
Quick Answer: What Are Instagram Post Sizes?
Instagram post sizes for feed images are 1080×1080 (1:1 square), 1080×1350 (4:5 portrait), and 1080×566 (1.91:1 landscape). 4:5 is the size recommended by Instagram for feed posts (see the Instagram Help Center for official specs). Use 1080px on the longest side for best quality. Export as JPG or PNG to avoid cropping and maximize engagement.
What You'll Find on This Page
If you're looking for Instagram post size, Instagram post dimensions, or Instagram feed aspect ratio for 2026, you're in the right place. On this page you'll find:
- Exact Instagram post dimensions – 1080×1080, 1080×1350, 1080×566 and why each works.
- Aspect ratios – 1:1 (square), 4:5 (portrait, recommended by Instagram), 1.91:1 (landscape).
- Quality and export settings – Best resolution and format to avoid cropping.
- Quick reference table – All Instagram post sizes in one place.
- FAQ – Quick answers on Instagram post dimensions and aspect ratios.
Use the table of contents to jump to the section you need. For Reels and Stories, see our Instagram Reel dimensions and Instagram Story dimensions.
Exact Instagram Post Dimensions (2026)
The exact Instagram post dimensions for 2026 are 1080×1080 (square), 1080×1350 (portrait 4:5), and 1080×566 (landscape). This is the size recommended by Instagram for feed posts—use 1080px on the longest side for best quality. Instagram displays feed posts in these ratios; other sizes may be cropped or letterboxed.
Instagram post pixel size matters: 1080px on the longest edge is full HD. Smaller sizes may look soft; larger sizes are downscaled by Instagram. For more feed and Story tips, see our Instagram caption generator and Instagram Story dimensions.
Instagram Post Aspect Ratios: 1:1, 4:5, 1.91:1
Instagram post aspect ratio options for feed are 1:1 (square), 4:5 (portrait), and 1.91:1 (landscape). 4:5 (1080×1350) is recommended by Instagram for maximum visibility in feed. Square 1:1 is classic; landscape works for wide images. For vertical video (Stories/Reels), use 9:16—see our Instagram Story dimensions.
Recommended by Instagram for Feed
Instagram recommends 4:5 (1080×1350) for feed image posts. This size gives more vertical space in the feed and helps prevent cropping. The Instagram Help Center states that 1080px on the longest side with supported aspect ratios (1:1, 4:5, 1.91:1) ensures best quality. Use 4:5 when you want maximum engagement and no cropping.
Instagram Post Export Settings
Use these Instagram post export settings to avoid cropping and quality loss:
- Square: 1080×1080, 1:1. JPG or PNG.
- Portrait (recommended): 1080×1350, 4:5. JPG or PNG.
- Landscape: 1080×566, 1.91:1. JPG or PNG.
- Format: JPG for photos; PNG if you need transparency (Instagram may convert).
- Max file size: 30 MB. Keep under 8 MB for faster uploads.
These settings give you the best Instagram post size for 2026. After export, use our Instagram caption generator and best time to post on Instagram before posting.
Quick Reference: Instagram Post Size Table
Use this table for Instagram post dimensions 2026 at a glance:
| Format | Dimensions (px) | Aspect Ratio |
|---|---|---|
| Square | 1080×1080 | 1:1 |
| Portrait (recommended) | 1080×1350 | 4:5 |
| Landscape | 1080×566 | 1.91:1 |
| Max longest side | 1080 | — |
| Image format | JPG or PNG | — |
| Max file size | 30 MB | — |
This is the best Instagram post size for 2026. For captions and timing, use our Instagram caption generator and best time to post on Instagram.
FAQ: Instagram Post Size
What is the best Instagram post size for 2026?
The best Instagram post sizes for 2026 are 1080×1080 (1:1 square), 1080×1350 (4:5 portrait, recommended by Instagram for feed), and 1080×566 (1.91:1 landscape). Use 4:5 for maximum visibility in feed.
What are Instagram post dimensions in pixels?
Instagram post dimensions: square 1080×1080 (1:1), portrait 1080×1350 (4:5), landscape 1080×566 (1.91:1). Instagram recommends 1080px on the longest side for best quality.
What aspect ratio does Instagram recommend for feed posts?
Instagram recommends 4:5 (portrait) for feed posts for maximum visibility. Square 1:1 and landscape 1.91:1 are also supported. See the Instagram Help Center for official specs.
Why is my Instagram post cropped?
Cropping happens when your aspect ratio isn't 1:1, 4:5, or 1.91:1. Export at 1080×1080, 1080×1350, or 1080×566 to avoid cropping on feed.
What is the maximum file size for an Instagram post?
Instagram supports images up to 30 MB and 1080px on the longest side. Use 1080×1080 or 1080×1350 for best quality without oversizing.
Can I use 9:16 or 16:9 for Instagram feed posts?
9:16 and 16:9 are for Reels and video. For feed image posts use 1:1, 4:5, or 1.91:1. Use our Instagram Story dimensions guide for 9:16.