MetaAdImageVideoActive
Facebook Reels · Ad
Last verified 15 Oct 2026
Check a file against this →Key facts
- Recommended size
- 1440 × 2560
BOfficial recommendation. Evidence details
- Source
- Meta Ads Guide: video ad specs, facebook-facebook-reels
- How verified
- Read directly
- Verified
- 15 Oct 2026
Design recommendation: Resolution 1440 x 2560, Ratio 9:16
Open source ↗- Aspect ratio
- 9:16
BOfficial recommendation. Evidence details
- Source
- Meta Ads Guide: video ad specs, facebook-facebook-reels
- How verified
- Read directly
- Verified
- 15 Oct 2026
Design recommendation: Resolution 1440 x 2560, Ratio 9:16
Open source ↗- Duration
- No limit stated
AOfficial requirement. Evidence details
- Source
- Meta Ads Guide: video ad specs, facebook-facebook-reels
- How verified
- Read directly
- Verified
- 15 Oct 2026
Technical requirement: Video Duration: No maximum limit.
Open source ↗- Max file size · Image
- ≤ 30 MB
AOfficial requirement. Evidence details
- Source
- Meta Ads Guide: image ad specs, facebook-facebook-reels
- How verified
- Read directly
- Verified
- 15 Oct 2026
Technical requirement: Maximum File Size: 30MB
Open source ↗- Max file size · Video
- ≤ 4 GB
AOfficial requirement. Evidence details
- Source
- Meta Ads Guide: video ad specs, facebook-facebook-reels
- How verified
- Read directly
- Verified
- 15 Oct 2026
Technical requirement: Maximum File Size: 4GB
Open source ↗
All requirements
| Property | Rule | Evidence |
|---|---|---|
| File size · Image | ≤ 30 MB | AOfficial requirement. Evidence details
Technical requirement: Maximum File Size: 30MB Open source ↗ |
| File format · Video | mp4, mov, gif | BOfficial recommendation. Evidence details
Design recommendation: File Type: MP4, MOV, GIF Open source ↗ |
| Duration · Video | No limit stated | AOfficial requirement. Evidence details
Technical requirement: Video Duration: No maximum limit. Open source ↗ |
| File size · Video | ≤ 4 GB | AOfficial requirement. Evidence details
Technical requirement: Maximum File Size: 4GB Open source ↗ |
| Special boxes in the container · Video | Not allowed | AOfficial requirement. Evidence details
Technical requirement: Special boxes: No Open source ↗ |
| Edit lists in the container | Not allowed | BOfficial recommendation. Evidence details
Videos should not contain edit lists in file containers. Open source ↗ |
| Property | Rule | Evidence |
|---|---|---|
| Image format | jpg, png | BOfficial recommendation. Evidence details
Design recommendation: File Type: JPG or PNG Open source ↗ |
| Image aspect ratio | 9:16 | BOfficial recommendation. Evidence details
Design recommendation: Ratio: 9:16 Open source ↗ |
| Image resolution | 1440 × 2560 px | BOfficial recommendation. Evidence details
Design recommendation: Resolution: 1440 x 2560 pixels Open source ↗ |
| Image width | ≥ 600 px | AOfficial requirement. Evidence details
Technical requirement: Minimum Width: 600 pixels Open source ↗ |
| Image height | ≥ 600 px | AOfficial requirement. Evidence details
Technical requirement: Minimum Height: 600 pixels Open source ↗ |
| Image aspect ratio tolerance | ≤ 3 % | AOfficial requirement. Evidence details
Technical requirement: Aspect Ratio Tolerance: 3% Open source ↗ |
| Property | Rule | Evidence |
|---|---|---|
| Video aspect ratio | 9:16 | BOfficial recommendation. Evidence details
Design recommendation: Ratio: 9:16 Open source ↗ |
| Video resolution | 1440 × 2560 px | BOfficial recommendation. Evidence details
Design recommendation: Resolution: 1440 x 2560 pixels Open source ↗ |
| Video codec | h264 | BOfficial recommendation. Evidence details
Design recommendation: Video Settings: H.264 compression, square pixels, fixed frame rate, progressive scan and stereo AAC audio compression at 128kbps+ Open source ↗ |
| Pixel aspect ratio | 1 | BOfficial recommendation. Evidence details
Square pixels (Video Settings). Open source ↗ |
| Frame rate mode | Constant | BOfficial recommendation. Evidence details
Fixed frame rate (Video Settings). Open source ↗ |
| Scan type | Progressive | BOfficial recommendation. Evidence details
Progressive scan (Video Settings). Open source ↗ |
| Captions | Recommended | BOfficial recommendation. Evidence details
Video Captions: Optional, but recommended Open source ↗ |
| Property | Rule | Evidence |
|---|---|---|
| Sound · Video | Recommended | BOfficial recommendation. Evidence details
Video Sound: Optional, but strongly recommended Open source ↗ |
| Property | Rule | Evidence |
|---|---|---|
| Primary text length · Image | ≤ 40 characters | BOfficial recommendation. Evidence details
Text recommendation: Primary Text: 40 characters Open source ↗ |
| Headline length · Image | ≤ 55 characters | BOfficial recommendation. Evidence details
Text recommendation: Headline: 55 characters Open source ↗ |
| Primary text length · Video | ≤ 40 characters | BOfficial recommendation. Evidence details
Text recommendation: Primary Text: 40 characters Open source ↗ |
| Headline text length · Video | ≤ 55 characters | BOfficial recommendation. Evidence details
Text recommendation: Headline Text: 55 characters Open source ↗ |
Loudness
No official loudness target. About loudness standards
| Property | Rule | Evidence |
|---|---|---|
| Audio codec | aac | BOfficial recommendation. Evidence details
Stereo AAC audio compression at 128 kbps+ (Video Settings). Open source ↗ |
| Audio channels | 2 | BOfficial recommendation. Evidence details
Stereo (Video Settings). Open source ↗ |
| Audio bitrate | ≥ 128 kbps | BOfficial recommendation. Evidence details
128 kbps+ (Video Settings). Open source ↗ |
Notes and caveats
- Values read from the labelled diagram (percentages only); the 21% is measured from the frame's right edge.
Sources
- Meta Ads Guide: video ad specs, facebook-facebook-reels · MetaRead directly · 15 Oct 2026
- Meta Ads Guide: image ad specs, facebook-facebook-reels · MetaRead directly · 15 Oct 2026
- Reels safe zones diagram (14% / 6% / 35% / 40% / 21%) · MetaSupplied by the owner · 15 Oct 2026
Version history
- 15 Oct 2026 · 0.2.0Verified: official pages read directly; official material supplied by the owner. Each item's verification field says which.
- 15 Oct 2026 · 0.1.0Initial research entry (not authoritative).