Summary
Summary
Each figure links to Meta's Reels Publishing API. Checked 2026-10-29. Max file size and caption limit are not stated on that page, so they are left off.
| Limit | Figure |
|---|---|
| Container | MP4 recommended |
| Aspect ratio | 9:16 |
| Resolution | 1080x1920 recommended, 540x960 minimum |
| Frame rate | 24 to 60 fps |
| Reel length | 3 to 90 seconds |
| Page story length | 60 seconds max when published as a Page story |
| Video codec | H.264 or H.265 (VP9 and AV1 also supported) |
| GOP | Closed GOP of 2 to 5 seconds |
| Chroma | 4:2:0 |
| Scan | Progressive scan |
| Frame timing | Fixed frame rate |
| Audio | AAC-LC stereo, 48 kHz, 128 kbps or more |
Picture
Resolution and frame rate
Aspect ratio is 9:16. Resolution is 1080x1920 recommended, and 540x960 minimum. Frame rate is 24 to 60 fps.
Encoding
Video and audio encoding
Container is MP4 recommended. Video is H.264 or H.265, and VP9 and AV1 are also supported, with a closed GOP of 2 to 5 seconds, 4:2:0, progressive scan, and a fixed frame rate. Audio is AAC-LC stereo, 48 kHz, at 128 kbps or more.