Instagram Carousel Dimensions & Size Guide (2026)

The best Instagram carousel size in 2026 is 1080 × 1350 pixels, a 4:5 portrait ratio. It takes up the most vertical space in the feed, which means more attention per swipe. Square (1080 × 1080) still works, but portrait wins for reach.

Instagram carousel sizes at a glance

Keep every slide the same ratio

Mixing ratios inside one carousel makes Instagram crop slides inconsistently. Pick one ratio, ideally 4:5, and use it for every slide so the swipe feels seamless.

Safe zones

• Keep text and key subjects within the center 80% of the frame.
• Leave breathing room at the bottom where the caption and UI sit.
• Account for the profile/username overlay near the top on some surfaces.

File specs

• Format: JPG or PNG (PNG for crisp text overlays).
• Max 10 slides per carousel.
• Keep files under ~30 MB each; Instagram compresses, so export at high quality.

Ready to schedule your carousel?

Once your slides are sized right, EzSocial writes captions in your brand voice, lets you approve with a swipe, and schedules and auto-publishes your carousel to Instagram, TikTok, and LinkedIn, so posting is one less thing to do.

Frequently asked questions

What is the best aspect ratio for an Instagram carousel?

4:5 portrait (1080 × 1350 px). It uses the most feed space and gets more reach than square.

How many slides can an Instagram carousel have?

Up to 10.

Should all carousel slides be the same size?

Yes. Use one consistent aspect ratio across every slide so Instagram doesn't crop them differently.