Instagram Carousel Size Guide for 2026: Every Dimension You Need to Get Right
Complete masterclass on aspect ratios, safe zones, and the secret export settings that keep your carousel text sharp.
If you have ever uploaded an Instagram carousel and noticed your text getting clipped, your faces cropped, or your design looking blurry — the problem almost certainly started before you hit post. It started with the wrong dimensions.
Instagram is strict about aspect ratios. It locks the format of your entire carousel to whatever your first slide uses. Get slide one wrong, and every subsequent slide is automatically cropped to match. No warning. No preview. Just cropped content.
The Three Instagram Carousel Formats
Instagram supports three aspect ratios for carousel posts. Every slide in a carousel must use the same one. Here is what each looks like in practice.
Portrait
1080 x 1350 px
- ✓ Max vertical space
- ✓ Higher engagement
- ✓ Best for text/info
Square
1080 x 1080 px
- ✓ Cross-platform safe
- ✓ Standard classic
- ✓ Clean and tidy
Landscape
1080 x 566 px
- ✓ Panoramic photos
- ✓ Data visualizations
- ⚠ Low engagement
Portrait (4:5) — The Engagement King
Portrait is the recommended format for the vast majority of Instagram carousels in 2026. It takes up the maximum vertical space in the mobile feed, which means users see less of the posts above and below yours as they scroll. More screen real estate means more attention, more dwell time, and more engagement.
Why it works
Portrait carousels take up roughly 25% more screen space than square posts. Studies consistently show this format generates more saves, shares, and comments than square or landscape equivalents.
The 2026 Format Update: 1080 x 1440 px
Instagram rolled out a new carousel dimension in early 2026 that many creators have not yet picked up on. The new format — 1080 x 1440 pixels at a 3:4 ratio — sits between the traditional portrait and square options, offering more vertical space than square without hitting the 4:5 cap.
The extra vertical space gives you more room to increase font sizes and line spacing, making your content more readable on mobile. It aligns naturally with how many phone screens render content.
The Most Expensive Carousel Mistake
When you upload a carousel, Instagram locks the aspect ratio to whatever your first image uses. Every subsequent image is automatically cropped to match — without any warning.
If your first slide is 4:5 (Portrait) and your second is 1:1 (Square), Instagram will crop the top and bottom of your square image to force it into 4:5. Content will disappear!
Safe Zones: Protecting Your Text and Faces
Even within the correct dimensions, there are areas of your slides that are at risk of being cropped in different contexts — profile grid view, Explore page previews, or shared links.
For portrait carousels (1080 x 1350 px), keep all essential content — text, logos, faces — within the central 1012 x 1350 px area. This accounts for the 3:4 crop applied in the profile grid view.
Rules of thumb:
- Leave 150 pixels of "breathing room" on all four sides.
- Avoid text in the extreme corners.
- Test how your cover slide looks in the 1:1 profile grid.
Preserving Image Quality
Instagram recompresses every upload. To keep your text sharp, export as PNG. PNG is lossless and preserves the sharp edges of text characters far better than JPG at equivalent file sizes.
Never get the size wrong again.
Our free Carousel Builder handles the dimensions automatically. Every template is perfectly sized for 4:5 Portrait, ensuring your exports are tack-sharp every time.
Try the Free Carousel Builder →Quick Reference Table
| Format | Dimensions | Best For |
|---|---|---|
| Portrait | 1080 x 1350 px | Max engagement, text guides |
| Square | 1080 x 1080 px | LinkedIn cross-posting |
| New 1440 | 1080 x 1440 px | High-res vertical guides |
Frequently Asked Questions
What is the best size for an Instagram carousel in 2026?
The best size is 1080 x 1350 pixels (4:5 portrait). This format takes up the most vertical space in the mobile feed, generating more dwell time and typically higher engagement than square or landscape options.
Do all carousel slides have to be the same size?
Yes. Instagram locks the aspect ratio of your carousel to the first slide and automatically crops all subsequent slides to match. Design all slides at the same dimensions before uploading.
Can I use portrait for Instagram and then reuse the same slides on LinkedIn?
Not without resizing. LinkedIn renders carousels as PDF document posts, and square (1:1) slides display best there. Portrait slides will appear with black bars or be cropped. If you need one set of slides for both platforms, design at 1080 x 1080 px.
What file format should I export carousel slides in?
PNG is best for text-heavy carousels (sharpest rendering). JPG at 85–95% quality is best for photo-heavy carousels (smaller file sizes). Both are accepted by Instagram.
How many slides can an Instagram carousel have?
Instagram supports between 2 and 20 slides per carousel post. For engagement, most top-performing carousels run between 5 and 10 slides — enough to deliver value without losing viewers.