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Reels Size Calculator

Recommended dimensions, aspect ratio, format and interface safe zones for Instagram Reels, TikTok, YouTube Shorts and Instagram Stories.

9:161080 × 1920

Shaded bands are covered by the interface

Aspect ratio
9:16
Width
1080 px
Height
1920 px
Resolution
1080 × 1920 (Full HD vertical)
Format
MP4 (H.264) or MOV, AAC audio
Max length
Up to 3 minutes

The cover thumbnail is cropped to 1:1 in the profile grid, so keep the key subject centred.

How it works

  1. 1Pick the platform you are exporting for.
  2. 2Read the ratio, width, height, resolution and format.
  3. 3Use the preview to see which parts of the frame the interface covers.
  4. 4Copy the specs into your editing project.

Features

  • Four vertical video destinations side by side.
  • Safe-zone visualisation for top and bottom overlays.
  • Maximum length and accepted formats per platform.
  • Copy-ready spec summary.
  • A reference tool — nothing to upload.

Examples

  • Instagram Reels — 9:16, 1080 × 1920, MP4 (H.264), up to 3 minutes
  • TikTok — 9:16, 1080 × 1920, MP4/MOV, up to 10 minutes
  • YouTube Shorts — 9:16, up to 2160 × 3840, up to 3 minutes
  • Instagram Story — 9:16, 1080 × 1920, 15 seconds per card

Why vertical video is 9:16

9:16 is a phone screen turned upright: 1080 pixels wide by 1920 tall. Exporting at exactly that size means no letterboxing, no upscaling and no surprise cropping. If your footage is 16:9, reframe the subject inside a vertical canvas rather than accepting blurred bars.

Export settings that hold up

  • H.264 in an MP4 container is accepted everywhere.
  • 8–12 Mbps for 1080p vertical is plenty.
  • Keep the frame rate at the source rate.
  • AAC audio at 128–192 kbps.

Tips

  • Keep captions inside the middle 60% of the frame.
  • Check the export size with the Video File Size Calculator.
  • For non-standard resolutions use the Video Aspect Ratio Calculator.

Frequently Asked Questions

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