Best Video Size for Instagram Reels
The recommended resolution, aspect ratio, and length for Instagram Reels, plus tips to keep your own videos sharp and full-screen.
Getting the size right is the easiest way to make your Reels look professional. The wrong dimensions lead to cropping, bars, or soft footage. This guide lays out the recommended specs for Instagram Reels and how to hit them with your own videos.
Use these numbers as your target whenever you create or resize a Reel you own.
Recommended Reels specs
| Property | Recommended |
|---|---|
| Aspect ratio | 9:16 (vertical) |
| Resolution | 1080 × 1920 |
| Frame rate | 30 fps (60 fps for fast motion) |
| Format | MP4 (H.264 video, AAC audio) |
Why 1080 × 1920?
That resolution matches the 9:16 shape at full HD, which most phones display crisply. Going higher rarely helps because Instagram re-compresses uploads, and going lower makes footage look soft. 1080 × 1920 is the sweet spot.
Keep important content centered
Instagram overlays captions, the audio label, and buttons near the edges. Keep your subject and any text in the central area so nothing important is covered. Leaving a safe margin top and bottom helps.
Hit the specs with your own footage
If your clip is not 1080 × 1920, resize it with the Video Resizer, then confirm the result with the Metadata Checker. To learn the resize workflow, read how to resize video for Instagram Reels.
Protect quality on upload
Upload on a strong connection, keep your file under a sensible size, and avoid re-compressing the same clip repeatedly. For why uploads sometimes look worse, see why your video loses quality after upload.
Common sizing mistakes that ruin a Reel
Most Reel problems come down to a handful of avoidable mistakes. The first is exporting at the wrong aspect ratio, usually 16:9 or 1:1, then letting Instagram crop it for you. The second is filming horizontally and rotating later, which leaves you fighting black bars. The third is upscaling a low-resolution clip to 1080 × 1920, which only stretches soft pixels and looks worse than the original. A fourth common trap is burning in captions or logos right at the edges where Instagram's interface covers them. Plan the 9:16 frame before you shoot, keep the camera vertical, and start from the highest-quality source you have rather than enlarging a small file.
Pre-upload quality checklist
Run through this short list before you post a Reel you own:
- Aspect ratio is exactly 9:16 (no bars, no stretch).
- Resolution reads 1080 × 1920 in the Metadata Checker.
- Frame rate is 30 fps, or 60 fps if the footage has fast motion.
- Container is MP4 with H.264 video and AAC audio.
- Captions and key subjects sit inside the central safe zone.
- The file is a sensible size, not a bloated multi-gigabyte export.
If any item fails, fix it before uploading. It is far easier to correct a clip on your computer than to delete and repost after it looks wrong in the feed.
Bitrate and audio settings that hold up after upload
Resolution gets the attention, but bitrate decides how clean your Reel looks once Instagram re-compresses it. For 1080 × 1920 footage, exporting at roughly 8 to 12 Mbps for 30 fps content gives Instagram plenty of detail to work with. Going much higher mostly inflates the file without a visible payoff, while going too low leaves blocky artifacts in motion-heavy shots. For audio, AAC at 128 to 256 kbps is clear and compatible. If your Reel relies on music or voice, that audio bitrate matters as much as the video, since muddy sound makes a clip feel cheap even when the picture is sharp.
Frequently asked questions
What is the best resolution for Instagram Reels?
1080 × 1920 pixels, which is full HD in a 9:16 vertical shape.
What aspect ratio do Reels use?
9:16 vertical. Square or landscape videos get cropped or padded to fit.
What frame rate is best?
30 fps works for most content. Use 60 fps for fast action or smooth motion.
What file format should I upload?
MP4 with H.264 video and AAC audio is the most compatible choice for Reels.
How long can a Reel be?
Reels support a range of lengths, and the maximum changes over time. Keep clips tight and engaging regardless of the cap.
Should I export my Reel larger than 1080 × 1920 for safety?
No. Instagram caps and re-compresses uploads, so a 4K vertical export gives no visible benefit on phones and just creates a heavier file. Export at 1080 × 1920 from a high-quality source instead.
My Reel has black bars on the sides. How do I fix it?
Bars mean the clip is not truly 9:16, often a landscape or square video padded to fit. Resize it to 1080 × 1920 using crop-to-fill so the frame is filled edge to edge, then re-check the dimensions before posting.
Does a higher frame rate make my Reel look better?
Only for fast motion. 60 fps smooths action like sports or dance, but for talking, tutorials, or static scenes it adds file size with no real benefit. Stick with 30 fps unless the footage clearly needs it.