Instagram Carousel Size in 2026: Exact Dimensions, Aspect Ratios, and Safe Zones

Can You Mix Aspect Ratios in One Carousel?

Not cleanly. Your first slide sets the aspect ratio, and the other slides get cropped or adjusted to fit it. Instagram also adds a twist: if you include video slides, it can switch the whole carousel to portrait dimensions, even when the first photo is square or landscape.

The fix is simple. Design every slide at the same size, and crop your own images before uploading. That way you decide what gets cut, not Instagram. This matches the guidance in Buffer's Instagram size guide, which recommends cropping mixed images yourself for better results.

How Many Slides Can an Instagram Carousel Have?

Up to 20. Instagram raised the limit from 10 to 20 photos or videos in a single carousel in 2024, and Metricool's write-up of the change confirms you can mix photos and videos in the same post. The rollout was gradual at first, so if you still see a limit of 10 in your app, update Instagram and try again.

The minimum is 2 slides. But more is not better: educational carousels usually work best around 7 to 10 slides, and product showcases at 3 to 5. Only add slides when each one earns its spot.

Instagram Carousel Resolution and File Specs

Getting the pixel size right is half the job. The other half is export settings, because Instagram compresses everything you upload.

• Resolution: Export at 1080 px wide. Instagram's help center states it uploads photos at up to 1080 pixels wide, so bigger files just get downsized.
• File type: Use PNG for text-heavy slides (sharper edges on letters) and JPG for photo-heavy slides. Export once from your source file. Re-saving a JPG repeatedly stacks compression.
• Color: Export in sRGB. CMYK files shift colors on upload, and your violet can turn muddy.
• File size: Instagram does not publish a hard limit for carousel images, but keep each slide well under 30 MB so uploads stay fast and reliable.
• Video slides: MP4 or MOV, in the same ratio as your image slides. Trim clips short, since a 45-second clip in slide 4 tends to kill swipe momentum.

If your carousel looks blurry after posting, the usual culprit is a file smaller than 1080 px wide that Instagram stretched, or a heavily compressed JPG. Start from the largest clean source you have.

Safe Zones: Where to Put Text So Nothing Gets Cropped

A safe zone is the area of your slide where text, faces, and logos can sit without getting cut off in any view. For carousels, you need to think about two views: the feed slide and the profile grid preview.

Here is a simple rule that covers both: keep everything important inside the center 3:4 area of the slide.

• On a 1080 x 1350 slide: keep key elements about 40 px in from the left and right edges. Text can be wider, but faces and logos should stay centered.
• On a 1080 x 1080 slide: keep key elements about 135 px in from the left and right edges, because the grid crops a quarter of the width.
• On a 1080 x 1440 slide: the whole slide is safe for the grid, but still keep about 60 px of padding so nothing feels cramped.
• Top and bottom: leave roughly 80 to 100 px of padding so text does not feel jammed against the edge, and so the "dots" and interface elements do not crowd it.

Only the cover slide (slide 1) shows in your profile grid, so it is the one that needs the strictest safe zone. Later slides can use the full frame.

For a deeper look at how the 3:4 grid affects your whole profile, Oktopost's Instagram grid size guide is a helpful reference.

Text size that stays readable on a phone

At 1080 px wide, your carousel is viewed on a screen about 6 inches across. That means tiny text disappears. As a starting point:

• Headline on the cover slide: 60 to 90 px
• Section headers: 40 to 55 px
• Body text: 28 to 36 px minimum
• Words per slide: keep body copy to roughly 30 to 40 words, and hooks to 10 words or fewer

If you have to squint at your design on your own phone, your audience will scroll past.

Which Instagram Carousel Size Should You Use?

Stop overthinking it. Use this quick decision guide:

Then pick one size and stay with it. A consistent ratio across posts makes your feed look intentional and makes your templates reusable. If you want the bigger picture across platforms, our guide to social media image sizes in 2026 covers everything from Stories to LinkedIn.

Common Instagram Carousel Size Mistakes

These are the mistakes that quietly hurt carousel performance:

1. Mixing aspect ratios. A square slide 5 in a portrait carousel gets cropped or letterboxed. Design every slide at the same size from the start.
2. Putting the headline at the edges. Your cover slide gets trimmed in the profile grid. Center it.
3. Using tiny text. Anything under about 28 px body size is hard to read on a phone. Cut words instead of shrinking type.
4. Exporting at the wrong resolution. Files narrower than 1080 px get stretched and look soft. Files wider than 1080 px waste space for no gain.
5. Exporting in CMYK. Colors shift on upload. Stick with sRGB.
6. Ignoring the grid preview. Your slide can look perfect in the feed and awkward on your profile. Always check the cover slide against a 3:4 crop.
7. Adding video slides without thinking. A video can flip the whole post to portrait, so design everything at 4:5 if you plan to mix in clips.

How to Set Up Your Carousel at the Right Size

You do not need a complicated workflow. Set your canvas to the size you chose, design slide 1 first with the safe zone in mind, then build the rest at the same dimensions.

If you would rather skip the manual setup, Krumzi builds a multi-slide carousel from a text description. It has 44 platform size presets across 10 platforms, plus custom dimensions from 50 to 8000 px, so you can start at 1080 x 1350 without typing numbers. Everything stays editable, and you can export the slides as separate images in a zip or as a multi-page PDF, with per-slide selection. You can try it with the AI carousel maker.

Need to work out a custom size or check a ratio? The free aspect ratio calculator does the math for you.

Once your size is locked in, these guides cover the rest of the process:

• How to create a carousel post for the step-by-step build
• How to make a seamless Instagram carousel for designs that flow across slides
• What is an Instagram carousel post if you are new to the format

Frequently Asked Questions

What is the best size for an Instagram carousel in 2026?

The best size is 1080 x 1350 pixels, a 4:5 portrait ratio. It fills more of the feed than square and only loses a small strip on the 3:4 profile grid. If you want zero grid cropping, 1080 x 1440 (3:4) also works.

Can Instagram carousel slides be different sizes?

They can be uploaded, but they will not display cleanly. The first slide sets the aspect ratio, and Instagram crops or adjusts the rest to match. For a polished result, design all slides at the same size and crop your images yourself before uploading.

How many slides can an Instagram carousel have?

You can add up to 20 photos or videos, with a minimum of 2. If your app still shows a limit of 10, update Instagram, since the increase rolled out gradually. Most high-performing educational carousels use 7 to 10 slides.

What resolution should Instagram carousel images be?

Export at 1080 pixels wide. Instagram's help center says it uploads photos at up to 1080 pixels wide, so larger files are downsized and smaller ones look soft. Use sRGB color, and choose PNG for text-heavy slides or high-quality JPG for photos.

Why does my carousel look cropped on my profile?

Instagram's profile grid uses a 3:4 crop, so square and 4:5 covers lose some width in the preview. Square images lose roughly 135 pixels per side, and 4:5 images lose about 34 pixels per side. Keep your headline and logo centered on slide 1 to avoid it.