# Instagram Carousel Size in 2026: Exact Pixels and Ratios

> Instagram carousel size for 2026, from the help center: 1080 px wide, 1.91:1 to 3:4, 20 slides max, one ratio per post, plus safe zones and a checklist.

Canonical page: https://www.socialfaktory.com/blog/instagram-carousel-size
Published: 2026-11-09
Language: en

The right Instagram carousel size in 2026 is 1080 pixels wide at a ratio between 1.91:1 and 3:4. That works out to a height between 566 and 1440 pixels. A post holds up to 20 slides, and they all share one ratio. Those figures come straight from Instagram's help center.

## What are the exact Instagram carousel sizes?

Instagram uploads photos at up to 1080 pixels wide. It keeps them at their original resolution as long as the ratio sits between 1.91:1 and 3:4. Anything outside that range is cropped to fit. That is the wording of the help center page on [image resolution](https://help.instagram.com/1631821640426723). The same page gives the matching heights, 566 to 1440 pixels at a width of 1080. Four ratios people actually use sit inside that range:

| Ratio | Pixels | Shape | Use it for |
|---|---|---|---|
| 3:4 | 1080 x 1440 | Tallest allowed | Maximum screen space, photo sets, step-by-step slides |
| 4:5 | 1080 x 1350 | Tall | The long-time default for designed carousels; still inside the range |
| 1:1 | 1080 x 1080 | Square | Product shots and quotes; the grid trims its sides to 3:4 |
| 1.91:1 | 1080 x 566 | Wide | Rare; screenshots and landscape photos that cannot be cropped |

The 3:4 row is the new one. Instagram head Adam Mosseri announced on Threads on May 29, 2025 that [3:4 photos upload without cropping, in single posts and in carousels](https://www.techedt.com/instagram-now-lets-you-post-34-photos-without-cropping), a change [9to5Mac covered the same day](https://9to5mac.com/2025/05/29/instagram-changes-standard-photo-aspect-ratio/). The help center range moved with it. Templates still built at 4:5 are not wrong, but a 3:4 slide takes about 7 percent more of the screen.

The publishing API that scheduling tools post through has not moved. Meta's [image specifications](https://developers.facebook.com/docs/instagram-platform/instagram-graph-api/reference/ig-user/media) still accept 4:5 to 1.91:1, and an image outside that range comes back with error 36003. So 3:4 is for carousels you post from the app; a scheduled carousel stops at 4:5.

Export at exactly 1080 wide. A 2160 x 2880 file is scaled down on upload and gains nothing you can see. A 720-wide file stays at 720 and looks soft on a phone, worst of all on text. JPEG at high quality is fine for photos; use PNG for slides with flat color and text.

## How many slides can an Instagram carousel have?

An Instagram carousel can have twenty slides. The help center page on [sharing a post with multiple photos or videos](https://help.instagram.com/269314186824048) says you can share up to 20 photos and videos as a single post. The limit went from 10 to 20 on [August 8, 2024](https://www.macrumors.com/2024/08/08/instagram-20-photos-carousel-posts/) and has stayed there.

Nobody has to fill all twenty; the count should match how long the idea holds up. For designed carousels:

- 5 to 8 slides for one idea with a few steps.
- 8 to 10 for a tutorial or a list.
- More than that when the material needs it, a long photo sequence or a step-by-step with no filler, and cut any slide that repeats an earlier one.

Whatever the count, give the last slide a reason to save or share. A recap, a checklist or a before-and-after pair all work; a bare "follow for more" gives nobody a reason to tap save.

## Can you mix ratios in one carousel?

No, one carousel takes one ratio. The same help page says the orientation you choose (square, portrait or landscape) affects every photo and video in the post. The first slide sets the frame and each later slide is fitted into it. You can drag a photo inside the frame to choose what gets kept, but you cannot change its shape.

This is why carousels made from mixed assets look wrong. Decide the ratio before you design anything, then make every slide at that size. Check the first slide twice. It appears in the feed and sets the crop for all the others. If a slide arrives as a 16:9 screenshot, put it on a 3:4 or 4:5 background rather than letting Instagram crop the sides off.

Video slides follow the same rule, plus one more. The same help page says videos inside a carousel are not treated as Reels, do not appear in the Reels tab and do not get Reels features. A carousel is a feed post even when it contains video.

## Where are the safe zones on a carousel slide?

Instagram publishes no safe zone for feed posts. Our rule: keep text and faces 100 pixels clear of the top and bottom edges and 60 pixels clear of the sides. The feed overlays the slide counter at the top right. The caption, buttons and profile strip sit against the bottom. On a 1080 x 1440 slide that leaves a working area of about 960 x 1240 pixels, and a preview in the feed settles any doubt.

Two more edges to respect:

- **The grid crop.** Your profile grid shows the first slide as a 3:4 tile. A 3:4 slide appears whole; a 4:5 or square one loses a strip on each side. Put the title in the middle third of slide one so it survives both the feed and the grid.
- **The swipe hint.** Slide one should leave something unfinished at the right edge, a sentence that runs on or an arrow, so the thumb knows there is more.

Converting a wide design? The [aspect ratio calculator](/tools/aspect-ratio-calculator) gives the exact pixel height for any width and ratio. The [carousel splitter](/tools/instagram-carousel-splitter) cuts one long panoramic image into equal slides that line up edge to edge when swiped.

## How do you design a carousel that gets swiped?

Plan the swipe before you design a slide. One claim on slide one, one idea per slide after it, and a payoff at the end. Mosseri has named [watch time, likes and sends](https://buffer.com/resources/instagram-algorithms/) as the three signals that matter most. A carousel can earn all three when each slide gives a reason to keep going.

A structure that holds up across niches:

1. **Slide 1:** the claim in under ten words, large type, no logo.
2. **Slide 2:** why it matters, in one sentence and one visual.
3. **Slides 3 to n-1:** one step, example or proof per slide, same layout every time.
4. **Last slide:** the recap, the checklist or the before-and-after.

Use one typeface, one accent color and the same margins on every slide. That consistency makes a carousel read as one object instead of ten posts stapled together. In SocialFaktory's [image editor](/features/image-editor) you lay out each slide at 1080 x 1350, or 1080 x 1440 for a post from the app. The type, color and margins carry from one to the next. The layouts travel, too. [How to make a LinkedIn carousel](/blog/how-to-make-a-carousel-on-linkedin) covers the PDF version. [How to make a TikTok slideshow](/blog/how-to-make-a-tiktok-slideshow) covers the 9:16 version of the same idea.

## What is the pre-publish checklist?

Six things to check before the carousel goes out, in this order.

1. Every slide is 1080 wide and the same ratio: 4:5 if it goes out through a scheduler, 3:4 or 4:5 if you post from the app.
2. Slide one reads at grid size: preview it in the profile grid and the title still makes sense.
3. No text within 100 pixels of the top or bottom, 60 of the sides.
4. No more than 20 slides, and the last one is worth saving.
5. The caption says what the carousel is about in its first line, because that line shows in the feed.
6. The order is right. Since [March 24, 2026](https://petapixel.com/2026/03/24/photographers-can-now-reorder-their-pictures-on-an-instagram-carousel-post) you can reorder slides after publishing, so a wrong order is no longer a delete-and-repost, but the first hours still count.

Schedule it from your calendar rather than from your phone at 11 pm. SocialFaktory [scheduling](/features/social-media-scheduling) takes a carousel of up to ten slides with its caption and publishes at the time you choose. [Create your account](/login) and build the first one at 1080 x 1350.

In one sentence: An Instagram carousel in 2026 is 1080 pixels wide at one ratio between 1.91:1 and 3:4 for every slide, at most 20 slides, with text kept clear of the top and bottom edges and a first slide that works at grid size.

## Questions

### What is the best Instagram carousel size in 2026?

1080 x 1440 pixels (3:4) gives the most screen space when you post from the app; 1080 x 1350 (4:5) is the long-time default and the tallest ratio Instagram's publishing API takes from a scheduler. Both sit inside the help center range of 1.91:1 to 3:4.

### How many photos can an Instagram carousel have?

Up to 20 photos and videos in one post, per the Instagram help center. The limit went from 10 to 20 on August 8, 2024.

### Can I mix square and portrait slides in one carousel?

No. The orientation you pick applies to every slide in the post, and later slides are cropped to match the first one.

### Does a video in a carousel count as a Reel?

No. The help center says carousel videos are not treated as Reels, do not appear in the Reels tab and do not get Reels features.

### Can I reorder carousel slides after posting?

Yes, since March 2026. Open the post menu, choose Edit and press and hold a slide to move it.

### Why does my carousel look cropped?

Its ratio is outside 1.91:1 to 3:4, or a later slide has a different shape from the first one. Resize every slide to the same 1080-wide format before uploading.

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