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Facebook Reels video specs

Export 9:16 at 1080x1920 (540x960 minimum) at 24–60 fps. Meta removed length and format limits in 2025, so any video posted to Facebook becomes a reel; reels published through the API must be 3–90 seconds.

Every number links to Facebook Reels's own page · Checked October 2026

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Video file

SpecValue
Aspect ratio9:16[1]
Resolution1080x1920 recommended; 540x960 minimum[1]
File formatMP4 (recommended)[1]
Video codecH.264 or H.265 (VP9 and AV1 also supported)[1]4:2:0, closed GOP of 2–5 seconds
Frame rate24–60 fps, fixed[1]progressive scan
AudioAAC Low Complexity, stereo, 48 kHz, 128 kbps+[1]
Video bitrateNot published
Max file sizeNot published

Length

SpecValue
Length in the appNo length or format restrictions[3]since June 2025
Which videos become reelsAll videos posted to Facebook, any length or orientation[2]
Length via the API3–90 seconds[1]60 seconds max when published as a Page story

Text and captions

SpecValue
Description lengthNot publishedthe API notes descriptions support hashtags

Safe zone

SpecValue
Safe zone for organic reelsNot publishedMeta publishes Reels safe zones for ads; see Meta Ads specs

What Facebook Reels doesn't publish

Creators ask about these, but there's no official number. We leave them out rather than guess.

  • Maximum file size for reels
  • Video bitrate
  • Caption or description character limit
  • A safe zone for organic Facebook Reels (Meta's ad safe-zone page for Facebook Reels didn't load for us)

Exporting for Facebook Reels

Export 1080x1920

It's Meta's recommended Reels size. Never go under 540x960.

Lock the frame rate

Meta asks for a fixed frame rate between 24 and 60 fps and progressive scan.

Use H.264 and AAC

H.264 in an MP4 with stereo AAC-LC audio at 48 kHz and 128 kbps or more covers Meta's listed settings.

Mind the scheduler

If a tool posts your reel through Meta's API, it has to be 3–90 seconds even though the app has no cap.

Mimic exports vertical 9:16 video with captions and titles kept inside the apps' safe zones and off the speaker's face.

Sources

  1. [1] Meta for Developers, Reels Publishing API. Checked October 2026.
  2. [2] Facebook Help Center, Create a reel on Facebook. Checked October 2026.
  3. [3] Meta Newsroom, Making It Easier to Create Videos on Facebook. Checked October 2026.

Platforms change limits without notice. Check the linked page before a big campaign.

Questions

How long can a Facebook Reel be?

There is no length limit in the app since June 2025: every video posted to Facebook is shared as a reel. Reels published through Meta's API must be 3–90 seconds.

What size should a Facebook Reel be?

9:16 at 1080x1920 pixels is recommended, with 540x960 as the minimum.

What frame rate does Facebook want for Reels?

A fixed 24 to 60 fps.

Can I post a horizontal video as a reel?

Yes. Facebook says all videos are shared as reels regardless of orientation, though Meta's recommended Reels ratio is 9:16.

Made for Facebook Reels, edited by Mimic.

Raw clip in. Captions, cuts, hook and product shots out.

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