Meta · Facebook Reels Video ad specs

Meta · Facebook Reels Video ads are vertical 9:16 video clips, measured at 1080×1920 px, up to 4096 MB per file, delivered as MP4 or MOV. They run in the Reels placement on Meta · Facebook. Encode with H.264 video with AAC audio at 30 fps for clean playback across devices.

Visual specifications

Dimensions1080 × 1920 px
Aspect ratios9:16
Orientationportrait
Max file size4096 MB
File typesMP4, MOV

Video & audio

Video codecH.264
Frame rate30 fps
Audio codecAAC
Audio channelsstereo (2)
Sample rate48000 Hz

Copy limits

Headline40 chars
Primary text125 chars

Notes & source

Top ~14% covered by profile/header, bottom ~35% by caption/CTA, right ~7% by reactions rail. No hard max duration; 4–60s sweet spot for performance.

Official source: https://www.facebook.com/business/ads-guide/video/facebook-reels

Frequently asked questions

What size are Meta · Facebook Reels Video ads?
Meta · Facebook Reels Video ads are 1080×1920 pixels with an aspect ratio of 9:16.
What aspect ratio does Meta · Facebook Reels Video use?
Meta · Facebook Reels Video supports 9:16 aspect ratio.
What is the maximum file size for Meta · Facebook Reels Video?
Files for Meta · Facebook Reels Video can be up to 4096 MB.
Which file formats does Meta · Facebook Reels Video accept?
Meta · Facebook Reels Video accepts MP4 and MOV files.
What codec should Meta · Facebook Reels Video ads use?
Encode Meta · Facebook Reels Video with H.264 and AAC at 30 fps.
What are the copy limits for Meta · Facebook Reels Video?
Meta · Facebook Reels Video copy is limited to 40-character headlines and 125-character body text.
Where does Meta · Facebook Reels Video appear on Meta · Facebook?
Meta · Facebook Reels Video ads appear in the Reels placement on Meta · Facebook.
Where can I find the official Meta · Facebook Reels Video documentation?
The official source for Meta · Facebook Reels Video requirements is https://www.facebook.com/business/ads-guide/video/facebook-reels, linked from this page.