Instagram 2026: The Ultimate Guide to Image and Video Sizes
In visual marketing, every 10 pixels matter. Incorrect formatting leads to cropped headlines, low quality, and—worst of all—reduced reach. In 2026, Instagram's algorithms heavily favor content that perfectly fills the user's screen.
As the LOOK_LIKE team, we’ve prepared an up-to-date breakdown of the formats you need to master to keep your brand looking professional.
1. Feed Posts (Images)
While Instagram started with squares, vertical is now king. The more screen real estate you occupy while a user scrolls, the higher your chances of stopping the "scroll."
- Square Post (1:1): 1080 x 1080 px
- Portrait Post (4:5) – RECOMMENDED: 1080 x 1350 px
- Why? It occupies 20% more screen space than a square, leading to higher engagement.
- Landscape Post (1.91:1): 1080 x 566 px (Rarely used, mainly for landscape photography).
2. Instagram Reels and Stories
In 2026, the line between Stories and Reels has blurred, but the dimensions remain consistent. These are full-screen, vertical formats (9:16).
- Dimensions: 1080 x 1920 px
- The "Safe Zone" Rule: Ensure your key elements (text, logos, faces) are within the central area (approx. 1080 x 1420 px). Avoid the edges—that’s where likes, descriptions, and avatars are overlaid.
3. Advertising Formats (Instagram Ads)
If you’re planning a campaign with LOOK_LIKE, you must prepare assets for specific placements:
- Feed Ads: 1080 x 1350 px is best.
- Stories/Reels Ads: 1080 x 1920 px.
- Carousel Ads: All images in a carousel must share the same aspect ratio (we recommend 1:1 or 4:5).
Summary Table: Instagram Dimensions 2026
| Format Type | Aspect Ratio | Resolution (px) | Best Use Case |
| Square | 1:1 | 1080 x 1080 | Standard post |
| Portrait | 4:5 | 1080 x 1350 | Highest CTR |
| Stories / Reels | 9:16 | 1080 x 1920 | Full-screen experience |
| Profile Picture | 1:1 | 320 x 320 | Avatar (circular crop) |
3 Golden Rules from LOOK_LIKE:
Think Vertical (4:5): In 2026, small squares are no longer enough. Vertical images build deeper engagement.
File Quality: Instagram compresses images heavily. Always export your graphics as .JPG or .PNG using the sRGB color space.
The Grid Consistency: Remember that on your profile (the grid), all posts are cropped to a 1:1 square. Make sure the center of your vertical photo looks good when cropped!
