Facebook Video Size
The current Facebook video specification: deliver 1080 x 1080 px at a 1:1 square aspect ratio. Below are the full delivery specs, the safe zones to design around, and the export recipe.
Facebook video delivery specs
- Resolution: 1080 x 1080 px master, square 1:1.
- Aspect ratio: 1:1.
- Maximum length: up to 241 minutes.
- Maximum file size: up to 4 GB.
- Frame rate: 30 fps.
- Bitrate: aim for 8 to 12 Mbps.
- Minimum resolution: do not deliver below 600 x 600 px.
- Codec and container: H.264, MP4.
Safe zones and caption limits
- Top safe zone: no significant crop.
- Bottom safe zone: leave room for the caption.
- Side safe zone: no significant crop.
- Caption: up to 63,206 characters, with about 125 shown before the fold.
- Hashtags: low impact on Facebook.
Best practice for Facebook video
- Square (1:1) is the safe default; 4:5 also fills more of the mobile feed than 16:9.
- Only about 125 characters show before See more, so hook fast.
- Upload SRT captions, because most feed video plays silent.
- For full-screen vertical reach, post a 9:16 Reel, which shares the Instagram Reels frame.
- Meta feed video uploads currently cap at 4 GB, so compress the master without crushing fine detail.
Export recipe
Export 1080 x 1080 px at 1:1, 30 fps, using H.264, MP4, and aim for 8 to 12 Mbps. Upload the highest-quality master allowed, keep key content inside the safe zone, and confirm the limits on the in-app upload screen, since platform specs change.
Frequently asked questions
What is the best video size for Facebook?
1080 x 1080 square (1:1) is a safe default; 4:5 also fills more of the mobile feed than 16:9. Deliver an MP4 (H.264) up to 4 GB.
Do hashtags matter on Facebook video?
Not much. Hashtags have low impact on Facebook, so prioritise a strong opening and SRT captions over tags.
Related platform guides
This is a free guide. Use the interactive Social Video Format Spec Guide for a tailored workflow, or let XO3D handle the production for you. XO3D is a UK-based CGI studio.