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Instagram Video Sizes and Dimensions Guide in 2026

Complete specs and dimensions for Instagram Reels, Feed posts, and Stories: 9:16, 4:5, and 1:1 aspect ratios with export caps.

Published
2 min readBy ClipSizer team
Visual dimension guide comparing Instagram Reels 9:16, Feed Post 4:5 portrait, and Feed Post 1:1 square video frame sizes

For video on Instagram in 2026, the optimal dimensions depend strictly on where the clip appears: full-screen Reels and Stories require 1080 × 1920 pixels (9:16 vertical), while traditional Feed post videos maximize viewport engagement at 1080 × 1350 pixels (4:5 portrait) or 1080 × 1080 pixels (1:1 square).

Publishing video in the wrong aspect ratio causes Instagram to either forcefully crop your footage or insert distracting letterboxing on either side.

Instagram video specifications matrix

Here are the exact supported specifications across Instagram’s video placements based on Meta’s official documentation:

Placement Recommended Resolution Aspect Ratio Maximum Duration Recommended Codec
Reels 1080 × 1920 px 9:16 (vertical) Up to 20 minutes H.264 / MP4
Stories 1080 × 1920 px 9:16 (vertical) 60 seconds per card H.264 / MP4
Feed Portrait 1080 × 1350 px 4:5 (portrait) Up to 60 minutes H.264 / MP4
Feed Square 1080 × 1080 px 1:1 (square) Up to 60 minutes H.264 / MP4
Feed Landscape 1080 × 608 px 1.91:1 (horizontal) Up to 60 minutes H.264 / MP4

Why 4:5 portrait beats square and landscape for feed posts

When scrolling through the Instagram home feed on mobile devices, a 4:5 portrait video (1080 × 1350) occupies 33% more vertical screen space than a 1:1 square post, and over 120% more space than a traditional 16:9 widescreen video.

Because users scroll quickly, occupying more physical pixel height increases viewer dwell time and makes on-screen text significantly easier to read on handheld phones.

Safe zones for Instagram Reels

While Reels display full-screen at 1080 × 1920, crucial interface elements overlay your video:

  • Bottom 20% (approx. 400 px): Reserved for account name, captions, and audio track attribution.
  • Right edge (approx. 120 px): Reserved for the Like, Comment, Share, and Remix buttons.
  • Top 10% (approx. 200 px): Reserved for camera controls, back arrows, and notch cutouts.

To ensure your titles, call-to-actions, and main subjects remain clearly visible, center your important visual elements within the safe 1080 × 1350 central box.

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