Instagram Carousel Size & Dimensions (2026 Guide)

Get the size wrong and Instagram crops your slides, pushing your text off the edge of the frame. The fix is one number you can set once and forget: 1080 by 1350 pixels. Here is the full spec.

The recommended size: 1080x1350 (4:5)

Build your carousel at 1080 by 1350 pixels, a 4:5 portrait ratio. It is the tallest format the feed allows, so it fills more of the screen than any other option and gives your text and graphics the most room. If you only remember one number, remember this one.

Every supported aspect ratio

Instagram accepts three shapes for feed images, per Buffer:

• Square, 1:1, 1080x1080. Balanced and predictable, but it leaves blank space above and below in the feed.
• Portrait, 4:5, 1080x1350. The recommended carousel size. Most feed real estate, best for text-heavy slides.
• Landscape, 1.91:1, 1080x566. The smallest footprint. Fine for a wide photo, weak for carousels where you want people to slow down and read.

For a deeper breakdown of pixels, ratios, and why portrait wins, see our full carousel dimensions guide.

One ratio per carousel

This is the rule people learn the hard way: every slide in a carousel must share the same aspect ratio. Instagram applies the shape of your first image to all of them. Drop a square slide into a portrait deck and Instagram crops it to fit, lopping off the top and bottom. Design all slides at 1080x1350 and the problem disappears.

How many slides you can post

In 2024 Instagram doubled the carousel limit. According to Metricool, the expanded cap of up to 20 photos or videos per carousel (up from 10) rolled out globally from August 2024. Hootsuite confirms the same 20-slide ceiling. That is the hard limit, not a target. For how to pick a count, read how many slides a carousel should have.

Mind the safe zone

The full 1080x1350 frame is yours, but parts of it get covered or clipped in the live feed. Keep your important content away from the very edges:

• Leave margins. Pull headlines and key graphics in from all four edges so nothing sits flush against the border, where it can look cut off.
• Account for the bottom overlap. The caption, username, and action icons (like, comment, save) sit near the lower portion of the post. Keep critical text higher up so it is never hidden behind that chrome.
• Watch the top. Avoid placing must-read text right against the top edge, where rounded corners and UI can crowd it.

A simple habit: design as if the outer band of the slide may be obscured, and put nothing you cannot afford to lose there. The structure that earns saves lives in the middle of the frame, and you can see that pattern in our guide to carousels that get saves.

The short version

Size every slide at 1080x1350 (4:5), keep one ratio across the whole deck, stay under 20 slides, and respect the safe zone. Nail those four and your carousel looks sharp on every phone.

Supaslides exports pixel-perfect 1080x1350 Instagram carousels, WYSIWYG, so the slide you edit is the slide you post. No cropping surprises, no guesswork.