YouTube Shorts Dimensions at a Glance
| Spec | Value |
|---|---|
| Aspect ratio | 9:16 (vertical) |
| Recommended resolution | 1080 × 1920 px |
| Minimum resolution | 720 × 1280 px |
| Maximum length | 3 minutes |
| Recommended format | MP4 (H.264 codec) |
| Maximum file size | 256 GB |
| Frame rate | 24, 25, 30, 48, 50, or 60 fps |
YouTube Shorts Aspect Ratio: 9:16
The required aspect ratio for YouTube Shorts is 9:16 — full vertical, designed for mobile screens.
This is the same aspect ratio as:
- TikTok videos
- Instagram Reels and Stories
- Facebook Reels
- Snapchat Spotlight
If you upload a video in a different aspect ratio (16:9 landscape or 1:1 square), YouTube may still classify it as a Short if it's under 3 minutes, but it will display with black bars on the sides or top/bottom. This looks unprofessional and tends to reduce engagement — always shoot or export in 9:16.
Recommended Resolution: 1080 × 1920 px
The standard HD resolution for Shorts. This matches the resolution of most modern smartphones when filming vertically, so if you film natively on your phone, you're already at the right resolution.
Higher resolution (4K: 2160 × 3840 px) is supported but offers minimal visual benefit on mobile screens and results in much larger file sizes. Stick to 1080p for the best balance.
Minimum resolution: 720 × 1280 px. Below this, YouTube may display the Short in lower quality.
Safe Zone: Keep Important Content Centered
YouTube Shorts overlay UI elements over your video:
- Bottom: Username, title, like/comment/share buttons — covers roughly the bottom 20% of the screen
- Top: Occasional overlays (subscribe button, info cards)
- Right side: Engagement buttons
Keep faces, text, and key visuals in the center 80% of the frame — roughly within a 1080 × 1420 px safe zone. Anything near the edges risks being covered by UI.
YouTube Shorts vs. Other Platforms: Dimension Comparison
| Platform | Dimensions | Aspect ratio |
|---|---|---|
| YouTube Shorts | 1080 × 1920 px | 9:16 |
| TikTok | 1080 × 1920 px | 9:16 |
| Instagram Reels | 1080 × 1920 px | 9:16 |
| Instagram Stories | 1080 × 1920 px | 9:16 |
| Facebook Reels | 1080 × 1920 px | 9:16 |
| Snapchat Spotlight | 1080 × 1920 px | 9:16 |
All major short-form video platforms use identical dimensions — 1080 × 1920 px, 9:16. This means a single video exported at these specs can be posted to every platform without reformatting.
Export Settings for YouTube Shorts
In CapCut:
- Resolution: 1080p
- Frame rate: 30fps or 60fps
- Format: MP4
In DaVinci Resolve:
- Format: MP4, H.264
- Resolution: 1920 × 1080 (set sequence to vertical)
- Frame rate: 30fps
In Adobe Premiere Pro:
- Sequence settings: 1080 × 1920
- Export: H.264, MP4, 1080p, 30fps
In iMovie (mobile):
- Export: 1080p HD
- Ensure project was set to vertical (9:16) when created
Thumbnail Size for YouTube Shorts
Shorts don't display custom thumbnails in the Shorts feed — they auto-play. However, they do show a thumbnail:
- On your channel page grid
- In YouTube search results
- When shared as a link
Custom thumbnail specs: 1280 × 720 px (16:9) — YouTube applies this even to Shorts for external display contexts. However, since Shorts are 9:16, your thumbnail will be cropped. Center your key visual.
Summary
YouTube Shorts dimensions:
- Aspect ratio: 9:16
- Resolution: 1080 × 1920 px
- Format: MP4
Since all short-form platforms use the same dimensions, you only need to export once and can post the same file to YouTube Shorts, TikTok, Instagram Reels, and Facebook Reels. PostLink handles the cross-posting — upload your 1080 × 1920 video once, schedule it to every platform simultaneously.
