You spent an hour on a ten-slide carousel, posted it, and slide one showed up with the headline shaved off the top and a soft, over-compressed look. Or your profile grid suddenly looks like every old square post was cropped by someone in a hurry. Instagram has changed more about feed sizing in the last two years — a 20-slide cap, a portrait profile grid, newly accepted ratios — than in the eight years before that, and most of the size charts still ranking on Google were written before any of it happened.
The best Instagram carousel size in 2026 is 1080 x 1350 pixels, a 4:5 portrait aspect ratio. It takes up the most space in the feed and matches the portrait profile grid Instagram rolled out in early 2025. Square 1080 x 1080 (1:1) and landscape 1080 x 566 (1.91:1) are still supported, but every slide in a carousel is shown at the aspect ratio of the first slide. Carousels can hold up to 20 slides (raised from 10 in 2024), can mix photos and video clips, and each video slide can run up to 60 seconds.
This guide covers the exact specs one at a time, which ratio to pick and why, what the 2025 grid change did to older posts, the safe zones that keep your text away from Instagram's overlays and crops, how to design slides people actually swipe through, the rules for video slides and music, how carousels compare with Reels, and how to produce them fast — by hand with templates, with free tools, or with an automated engine like Vidpal that turns a trending topic into a finished, scheduled carousel.
What is the best Instagram carousel size in 2026?
The best size for an Instagram carousel is 1080 x 1350 pixels at 4:5, and every slide should be exported at exactly those dimensions. That ratio is the tallest one the feed displays without cropping, it is the same ratio as the profile grid thumbnails, and it gives you the largest possible canvas for text — which matters, because carousels are mostly read, not watched.
The 1080-pixel width is not arbitrary. Instagram's help center says it stores photos at up to 1080 pixels wide; anything wider gets downsized and anything narrower than 320 pixels gets enlarged, and both of those resizes cost you sharpness. Designing at 1080 x 1350 (or at a clean 2x, 2160 x 2700, and exporting down) means Instagram's own compression is the only processing your image goes through. Uploading a 4000-pixel-wide file does not make the post look better; it just hands the downscale to Instagram instead of your design tool.
The rule that trips most people up is the first-slide rule. When you build a carousel, Instagram sets the aspect ratio for the whole post from the first image you select, then crops every later slide to match. If slide one is 4:5 and slide six is square, slide six loses a strip on each side — you can drag the crop around in the composer, but you cannot give one slide a different ratio from the rest. Build every slide on the same 1080 x 1350 canvas and the problem never comes up.
What are the exact Instagram carousel specs?
Here is the full specification, one item per paragraph so you can copy it straight into a brief. Where Instagram has not published a hard number, it is flagged, and the current version of everything below lives on Instagram's help center.
Recommended slide size: 1080 x 1350 pixels, 4:5 portrait. This is the target for every slide, photo or video.
Supported aspect ratios: anything from 1.91:1 (landscape, 1080 x 566) through 1:1 (square, 1080 x 1080) to 4:5 (portrait, 1080 x 1350). Instagram also began accepting 3:4 photos in May 2025 so that uncropped phone-camera shots post without trimming; 3:4 is slightly taller than 4:5, but because the profile grid is 4:5, a 3:4 slide gets trimmed at the top and bottom in the grid, so 4:5 remains the safer target for designed carousels. Anything taller than that — a 9:16 Story graphic, say — is cropped down when you post it to the feed.
Width: Instagram's page on photo and video sizes explains that images between 320 and 1080 pixels wide are kept at their original width; narrower files are enlarged to 320 and wider files are downsized to 1080. Always export at 1080.
File types: JPG and PNG for image slides, MP4 and MOV for video slides. Instagram re-encodes everything on upload — PNGs come out as JPEGs and video is recompressed — so a clean, high-quality source matters more than the container. For video, H.264 with AAC audio is the safe combination.
File size: Instagram does not advertise a hard file-size cap for feed photos; it simply compresses what you upload, so a JPG in the 1 to 3 MB range is plenty. For video slides, keep files short and reasonably small — a 60-second 1080 x 1350 clip at a moderate bitrate lands well under 100 MB. Instagram publishes its upload limits by format on the help center, so check there before pushing a heavy file.
Slide limit: up to 20 slides per carousel. Instagram raised the cap from 10 to 20 in 2024, and the higher limit applies to mixed photo-and-video carousels as well.
Video length per slide: up to 60 seconds for each video clip inside a carousel. Longer clips are trimmed in the composer. The cap is per clip rather than per post, so a 20-slide all-video carousel could technically run 20 minutes — nobody will watch that, but the limit is on the slide, not the set.
Caption limit: 2,200 characters, with roughly the first 125 characters showing in the feed before the “more” link. Put the hook or the one-line summary first.
Hashtags: Instagram cut the cap from 30 to five hashtags per post or Reel in a change announced in December 2025 and rolled out gradually, after spending two years steering creators toward a handful of specific tags rather than a wall of them. Treat five as the hard ceiling and three to five specific tags as the target, and confirm the current number on the help center if your workflow depends on it.
Alt text: you can write custom alt text for every image slide in the advanced settings before posting. It is an accessibility feature first, but it is also the only text Instagram can read on an image slide, so use it.
Portrait vs square vs landscape: which carousel ratio should you use?
Use 4:5 portrait for almost every carousel. At the same 1080-pixel width, a 4:5 slide is 1350 pixels tall, a square is 1080, and a landscape slide is 566 — so portrait gives you 25 percent more screen than square and nearly two and a half times the height of landscape. In a feed that people scroll vertically with their thumb, height is attention.
Square still has a place. If you are repurposing a library of older 1:1 assets, cross-posting the same slides to platforms where square is the norm, or building a product grid where each slide is a single centered object, 1:1 is fine and looks clean in the feed. The trade-off since 2025 is the grid: a square post is cropped on both sides in the 4:5 profile thumbnail, so keep the subject centered and away from the left and right edges.
Landscape is the ratio to avoid unless the content is genuinely wide — a panorama, a wide chart, a before-and-after side by side. A 1.91:1 slide is the smallest thing in the feed and is aggressively cropped in the grid. The better move is to place the wide image on a 1080 x 1350 canvas with a solid or blurred background so the post still occupies the full portrait space. Our guide to video aspect ratios covers how each ratio behaves on every platform if you are planning slides for more than Instagram.
How did Instagram's 2025 profile grid change affect carousels?
In January 2025, Instagram changed the profile grid from square 1:1 thumbnails to portrait 4:5 rectangles. Adam Mosseri's explanation was simple: most of what people post is now vertical, and a square grid cropped all of it. The change rolled out to everyone over the following weeks, and Instagram's official blog is where any further grid updates get announced.
The side effect is the one you have probably noticed: every older square post is now cropped left and right in the grid, and older landscape posts lose most of their width. The underlying post is untouched — open it and it displays in full — only the thumbnail changed. Instagram added an “Adjust preview” option in the post's three-dot menu that lets you reposition which part of the image fills the 4:5 thumbnail. That feature rolled out gradually and its options have shifted over time, so if yours looks different, check the help center for the current steps.
For new carousels, the fix is built into the size recommendation: design slide one at 1080 x 1350 and it appears in the grid exactly as designed, uncropped. Slide one is also your grid cover, so it should read as a thumbnail — a big headline, high contrast, subject in the middle. Our guide on how to grow on Instagram in 2026 covers what a grid built from strong cover slides does for profile conversion.
Where are the safe zones for text on a carousel slide?
Keep all essential text inside the central 80 percent of the slide. On a 1080 x 1350 canvas, that means a margin of about 110 pixels on the left and right and about 135 pixels at the top and bottom. Anything decorative can run to the edge; anything the reader needs — the headline, the number, the punchline — stays inside the box.
The margins exist because your slide is shown in more than one place, and each one covers or crops a different edge. In the feed, Instagram overlays the slide counter (2/10) in the top-right corner of the image, so keep that corner clear on every slide. On your profile, the grid thumbnail is small and, for anything that is not 4:5, cropped. In Explore and in the Reels tab — where carousels with video or music can appear in a full-screen 9:16 layout — the username, caption, and the like, comment, and share buttons overlay the lower part of the screen, close to the bottom edge of your 4:5 slide. And when a follower shares the post to their Story, it appears as a smaller card on a 9:16 canvas, where small text becomes unreadable.
Font size is the other half of safe-zone design. On a 1080-pixel-wide slide, headlines hold up at 72 to 120 pixels and body text at 40 to 56 pixels; below about 36 pixels, text disappears on a phone in the feed and vanishes entirely in the grid. Choose heavy sans-serifs with generous letter spacing — the same rules that make subtitle fonts readable at a glance apply to slides. If you are dropping a 9:16 clip into a video slide, crop it to 4:5 before you upload rather than letting Instagram pick the crop for you.
How do you design an Instagram carousel that gets swiped?
A carousel gets swiped when slide one earns the swipe, each following slide delivers exactly one idea, the whole set looks like one document, and the last slide tells people what to do next. Everything else — palettes, fonts, illustrations — is in service of those four things.
Slide one is a headline, not a title page. Write it like a hook: a specific promise (“7 carousel sizes, ranked by how much feed space they take”), a contradiction (“Square posts are quietly shrinking your reach”), or a number with a consequence. Add a small swipe cue — an arrow, a “swipe” label, or a sentence that visibly continues onto the next slide — because a first slide that looks complete gives nobody a reason to move. Our guide to why carousels win on saves and shares breaks down hook, body, payoff, and CTA slides in detail.
Body slides follow the one-idea rule: one point, 15 to 25 words, a heading and a supporting line, and nothing else. If an idea needs more, split it across two slides — swipe-through is the metric you are optimizing, and a second easy swipe beats one dense slide people quit on. Number your slides in a corner (inside the safe zone) so readers know how far along they are, and keep the layout identical from slide to slide. A saved template — background, type scale, colors, corner number — is what makes a carousel look like one piece instead of ten separate images; treat it as part of your brand kit.
The last slide is the call to action, and it should ask for one thing: save this, share it with someone, follow for the next one, or comment a keyword. Saves and shares are the two actions Instagram weights most heavily for feed distribution, so ask for those before you ask for a follow. Six to ten slides is the range where most carousels perform best; use the full 20 for genuinely deep step-by-step guides, not to pad.
What are the specs for video slides in an Instagram carousel?
Video slides follow the same rules as image slides: they are cropped to the aspect ratio of the first slide, so a 4:5 carousel wants 1080 x 1350 video, and each clip can be up to 60 seconds long. Upload MP4 or MOV, H.264 with AAC audio, at 30 frames per second. You can mix photos and videos freely in any order, up to the 20-slide cap.
In the feed, video slides autoplay with the sound off, so treat them like a Reel: burn captions in, put motion in the first second, and design the frame so it makes sense muted. A 9:16 clip you already shot for Reels needs to be cropped to 4:5 — you lose close to 30 percent of the height — so either shoot with that crop in mind or resize the video with a background fill before posting. Autoplaying video also nudges the reader to pause, which is one reason mixed carousels tend to hold attention longer than all-image sets.
You can also add music to a carousel — photo-only or mixed — from the composer, and the track plays across the slides. Carousels with music or video may also be recommended in the Reels tab as well as the feed, which is extra reach for the same post. If a Reel is really what you want, our guide on how to make a Reel with photos explains when a photo Reel beats a carousel, and how to add music on Instagram covers the licensing and Original Audio options.
How do carousels perform compared to Reels?
Reels reach more people who don't follow you; carousels earn more saves and shares from the people who do. Instagram has said repeatedly that sends (shares) and saves are among the strongest ranking signals for feed distribution, and multi-slide posts collect them at a higher rate because the format holds attention longer than a single image. Both formats have a job; the mistake is running only one.
Carousels also get a second look. Instagram has described showing a carousel again to someone who scrolled past it the first time, opening on a later slide — a second chance that a single image or a Reel does not get. Across most accounts, a practical weekly mix looks like two to four Reels for discovery and one or two carousels for saves and depth. Our breakdown of the carousel algorithm covers the signals in detail, and our list of Instagram Reels ideas for 2026 gives you formats to pair each carousel with. Instagram's own creator resources publish official guidance on both formats.
How do you make Instagram carousels fast?
The fast way to make carousels is to stop designing each one from scratch: build a template at 1080 x 1350, write the slide text as a numbered outline first, then pour the outline into the template. Do it by hand in a design tool, with free generators for the pieces you don't want to write, or with an automated engine that produces the whole post.
Manually, browser design tools like Canva and Figma ship with Instagram post templates at 1080 x 1350 and let you duplicate a page per slide, so a ten-slide set is a ten-minute layout job once the template exists. For the pieces around the slides, our free Instagram caption generator writes the caption from your slide text, the Instagram hashtag generator picks a tight set of relevant tags, and the text-to-image tool creates a background or cover visual when you don't have a photo.
With AI, the slide writing disappears too. Vidpal produces image carousels from the same pipeline it uses for Reels: it researches trending topics in your niche, writes the slide copy in your brand voice, lays it out on a consistent 4:5 template, and either queues the post for your approval or auto-publishes it to Instagram on schedule. It is built for faceless, high-cadence accounts rather than one-off custom design, so if every carousel needs bespoke illustration you will still want a designer in the loop. We wrote up the full automated carousel workflow separately.
Instagram carousel specs at a glance
Best size: 1080 x 1350 pixels, 4:5 portrait.
Square: 1080 x 1080 pixels, 1:1 — supported, cropped on the sides in the profile grid.
Landscape: 1080 x 566 pixels, 1.91:1 — supported, smallest in the feed, heavily cropped in the grid.
Aspect ratio rule: all slides display at the ratio of the first slide.
Slides: up to 20 per carousel, photos and videos in any order.
Video slides: up to 60 seconds each, MP4 or MOV, H.264 and AAC, cropped to the carousel ratio.
Image files: JPG or PNG, exported at 1080 pixels wide; Instagram recompresses on upload.
Caption: up to 2,200 characters, roughly 125 visible before the “more” link.
Hashtags: five per post or Reel since Instagram's December 2025 change (down from the old cap of 30); three to five specific tags is the practical target.
Text safe zone: the central 80 percent — about 110 pixels in from the sides and 135 pixels from the top and bottom on a 4:5 slide; keep the top-right corner clear for the slide counter.
Profile grid: 4:5 portrait thumbnails since early 2025; 4:5 slides appear uncropped.
Stories and Reels: 9:16 (1080 x 1920) — a different format entirely; see how long an Instagram Story can be for Story specs.
Common Instagram carousel mistakes
Mixed ratios. A square slide dropped into a 4:5 carousel gets cropped on the sides, and a 4:5 slide in a square carousel loses its top and bottom. Export every slide from the same template at the same size.
Text in the crop zone. Headlines near the top-right edge collide with the slide counter, and anything within about 100 pixels of an edge risks a crop in the grid or a Story share. Keep it in the central 80 percent.
Tiny fonts. Body text under 36 pixels on a 1080-wide canvas reads fine on your monitor and not at all on a phone. Design at phone size, or zoom out to thumbnail scale before you export.
Too many ideas on one slide. Three bullet-style points on a single slide is a slide people quit on. One idea, one slide — the slide count is free up to 20.
No hook on slide one. A cover that just says “Tips for Instagram” gives nobody a reason to swipe. Slide one is the ad for the rest of the carousel.
Oversized or wrong-format files. A 4000-pixel PNG gets downsized and re-encoded by Instagram, usually worse than your own export would be. Send a 1080 x 1350 JPG at high quality and let the platform do as little processing as possible.
Frequently Asked Questions
What size is an Instagram carousel? The best Instagram carousel size is 1080 x 1350 pixels at a 4:5 portrait aspect ratio, which fills the most feed space and matches the profile grid. Square 1080 x 1080 (1:1) and landscape 1080 x 566 (1.91:1) are also supported. Whichever you choose, all slides display at the ratio of the first slide.
How many photos can you put in an Instagram carousel? Up to 20. Instagram raised the limit from 10 to 20 slides in 2024, and the 20 can be any mix of photos and videos. Most high-performing carousels use six to ten slides; the full 20 is best reserved for step-by-step guides.
Can you post a 9:16 carousel on Instagram? No. Feed carousels top out at 4:5 (1080 x 1350); if you upload a 9:16 image, Instagram crops it to 4:5 in the composer before posting. The 9:16 format is for Reels and Stories. If you want a full-screen vertical set of photos, post them as a photo Reel instead, and check Instagram's help center for any changes to feed ratios.
Can you mix photos and videos in an Instagram carousel? Yes. A single carousel can contain image slides and video slides in any order, up to 20 total. Every slide, including video, is cropped to the aspect ratio of the first slide, and each video clip can be up to 60 seconds long.
How long can a video be in an Instagram carousel? Each video slide can run up to 60 seconds. The cap is per clip, not per post, so a carousel with several video slides can total several minutes. Videos autoplay muted in the feed, so add captions and put motion in the first second.
Can you change a carousel's aspect ratio or slide order after posting? No. Aspect ratio, slide order, and the slides themselves are fixed once published; you can edit the caption, alt text, tags, and location, and you can delete individual slides from a published carousel. To change the ratio or reorder slides, delete the post and republish it.
What font size should you use on an Instagram carousel slide? On a 1080 x 1350 canvas, use 72 to 120 pixels for headlines and 40 to 56 pixels for body text, and avoid anything under about 36 pixels. Heavy sans-serif fonts with high contrast against the background read best on a phone screen in the feed.
Get the size right, then post carousels as often as Reels
Export every slide at 1080 x 1350, keep the important text inside the central 80 percent, hook on slide one, one idea per slide, ask for a save or a share on the last one. That settles the size and dimensions question for good — the remaining variable is whether you publish carousels consistently enough for the saves and shares to compound.
That cadence is what Vidpal is built for. On a schedule you set, it researches trending topics in your niche, writes a script in your brand voice, generates an AI voiceover, pulls visuals and B-roll, burns in word-level animated captions, renders a 9:16 video, and auto-publishes to Instagram Reels, TikTok, YouTube Shorts, Facebook, Pinterest, and X — and the same pipeline turns those topics into 4:5 image carousels for your Instagram feed, with a review queue if you want to approve each one and an analytics feedback loop that learns which formats your audience saves. There is a free plan to start with; see pricing for the paid tiers, browse the use cases to find your niche, and pick up the free tools for captions, hashtags, cropping, and resizing in the meantime.
