Video size
Facebook Reels video size
Same full-screen vertical shape as Instagram Reels, and the same export usually serves both without a re-render.
- Resolution
- 1080x1920
- Aspect ratio
- 9:16
- Also accepted
- 1:1
File: MP4 or MOV, H.264 video, AAC audio.
Length: Facebook Reels are built for short. Longer material belongs in a regular video post.
Export suggestions, not a guarantee of how every upload will display. Rules checked: July 2026. Platform docs.
Need to keep the whole scene? Read our guide to resizing without cropping.
Crop or fit calculator
Enter your source dimensions. Crop fills the output by trimming edges; fit keeps the whole scene and adds space around it. No file upload needed.
Enter whole-pixel dimensions from 1 to 32768.
- Source crop box
- —
- Source offset
- —
- Trimmed away
- —
- Export at
- —
The outline shows the crop or fitted picture. Shaded bands are rough layout guides for vertical output, not official safe-zone dimensions. Actual controls vary by device, captions and player state; check the upload preview.
Do the crop on your phone
Cropzen crops, trims and resizes video to these ratios on Android. No watermark or sign-up. 1080p exports are free; Pro adds 4K.
What to watch out for on Facebook
- One 1080x1920 master covers Facebook Reels, Instagram Reels and Stories.
- Facebook compresses harder than Instagram, so avoid fine text and heavy grain.
- Cross-posting from Instagram keeps the ratio but re-encodes the file.
Questions people ask
What size should a Facebook Reels video be?
A suggested export is 1080 by 1920 pixels at 9:16. Same full-screen vertical shape as Instagram Reels, and the same export usually serves both without a re-render.
Which aspect ratio does Facebook accept besides 9:16?
1:1 all upload, but they show bars or get cropped. 9:16 is the one that fills the frame.
Where does the Facebook interface cover the video?
Controls and captions can cover the picture differently across devices and viewing modes. The shaded calculator preview is an illustrative margin, not an official safe-zone specification. Check your upload preview before placing important text near an edge.
How do I crop a video I already shot to this size?
Use the calculator on this page to get the exact crop box, then apply it in any editor. On Android, Cropzen does it in a few taps with no watermark and no sign-up.