Instagram Reels ads specs
Instagram Reels ads use 9:16 vertical video, MP4 or MOV up to 4 GB and up to 15 minutes long, with the top 14%, bottom 35% and 6% of each side kept free of text and logos.
From Instagram's own ads documentation, checked 2026-10-26.
| Aspect ratio | 9:16 |
|---|---|
| Resolution | Meta recommends 1440x2560; 1080x1920 is also 9:16 and well above the minimum. Minimum width 500 px for ads 30 seconds or longer (250 px under 30 seconds) |
| File types | MP4, MOV |
| Max file size | 4 GB |
| Length | Up to 15 minutes |
| Primary text | 44 characters recommended |
| Video codec | H.264, square pixels, fixed frame rate, progressive scan |
| Audio | Stereo AAC, 128 kbps or more. Sound is optional but strongly recommended |
Meta publishes the Reels safe zone as percentages: 14% top, 35% bottom, 6% each side. Pixels are those percentages on a 1080x1920 frame.
Things that get ads rejected or hidden
- Use original audio or tracks from Meta's Sound Collection. Licensed commercial music can get the ad muted or rejected.
- The bottom 35% is the largest no-go area of any placement here, because the caption, CTA button and account name stack there.
- Product tags and GIFs are not supported in Reels ads.
Sources
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