Social video specs 2026

Facebook Reels and video specs 2026

Since September 2025 every video posted to Facebook is shared as a Reel, of any length and orientation. Use 9:16 at 1080×1920 (at least 540×960), MP4 with H.264 and 24 to 60 fps.

By the Slice research teamUpdated How we did it

Get this page’s dataSocial video specs 2026
  • 1080×1920 (9:16)size
  • No limitlength
  • 3 of 10specs from an official help page

What aspect ratio is a Facebook Reel?

Any orientation. 9:16 recommended to fill the screen.

Official: Meta Business Help: Facebook Reels.

What resolution should a Facebook Reel be?

1080×1920 recommended; at least 540×960.

Official (API docs): Meta developer docs: Reels publishing.

Free toolCheck your Facebook video before you postDrop a frame into the free Facebook Reels (all video) safe-zone checker and see what the buttons and caption will cover.

How long can a Facebook Reel be?

No minimum or maximum.

API publishing: 3 to 90 seconds. Feed video ads: up to 241 minutes. All uploads became Reels in September 2025.

Official: Meta Business Help: Facebook Reels.

What is the file size limit for a Facebook Reel?

Not published for organic uploads. Ads: 4 GB.

Third parties quote 10 GB for organic uploads; not on a Meta page.

Official (ads spec): Meta Ads Guide: Facebook Feed.

What frame rate should a Facebook Reel use?

24 to 60 fps, fixed.

Official (API docs): Meta developer docs: Reels publishing.

Which file types and codecs does Facebook accept?

MP4 or MOV recommended; H.264 or H.265; AAC-LC 48 kHz stereo.

Official: Facebook Help: video formats.

What is the safe zone for a Facebook Reel?

On a 1080×1920 frame, keep text and faces inside a 580×1340 px box: 223 px from the top, 357 px from the bottom, 225 px from the left and 275 px from the right.

The measured safe area (lime) on a 1080×1920 frame: 223 px clear at the top, 357 px at the bottom.

The margins include the 9% each side that a tall phone screen crops off a 9:16 video. See "How we measured the safe zones".

What Facebook publishes: Ads only: keep the edges of 9:16 ads clear; no Reels percentages. Facebook Stories ads: 14% (250 px) top, 20% (340 px) bottom.

Official (ads spec): Meta Business Help: safe zones.

What does Facebook not publish for reels (all video)?

We found no official figure for a caption limit or a cover size. Where a guide quotes one, it is common practice or the ads spec, not a Facebook rule for ordinary posts.

Questions

What are Facebook Reels and video specs in 2026?

Since September 2025 every video posted to Facebook is shared as a Reel, of any length and orientation. Use 9:16 at 1080×1920 (at least 540×960), MP4 with H.264 and 24 to 60 fps.

How long can a Facebook Reel be?

No minimum or maximum.

What aspect ratio is a Facebook Reel?

Any orientation. 9:16 recommended to fill the screen.

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Where do these numbers come from?

Facebook's own help, developer and ads pages, each opened on 2 October 2026. Every value says which kind of page it came from. The safe zone is measured by Slice.

n = 10 specs, 7 with an official source link. Last updated 2 October 2026.

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This page’s own figures as a CSV, and the full files behind Social video specs 2026. One email unlocks every download on Slice’s data pages.

  • This page’s figures (CSV) Every table and figure on this page, with its source line.
  • Every spec (CSV) One row per format and spec, with its status and source.
  • Every spec (JSON) The same, structured by platform and format, with the measured safe zones in pixels.

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