LinkedIn Video Dimensions
LinkedIn supports three aspect ratios for video. The recommended size depends on where the video will be seen most:
| Ratio | Resolution | Best For |
|---|---|---|
| 16:9 (landscape) | 1920 × 1080 px | Video ads, desktop viewers, cross-posts |
| 1:1 (square) | 1080 × 1080 px | Organic feed posts on mobile (78% more screen real estate) |
| 9:16 (vertical) | 1080 × 1920 px | Quick mobile-first content, story-style explainers |
For organic posts, square (1:1) consistently outperforms landscape on mobile because it takes up more of the feed. Reserve 16:9 for video ads or content that will also live on YouTube.
Native Upload vs External Link
LinkedIn's algorithm penalizes external video links (YouTube, Vimeo, etc.) because they pull users off the platform. Native uploads get roughly 5× more reach. Always upload directly to LinkedIn — never embed an external player.
File Size & Format
- Format: MP4 (recommended) or MOV
- Video codec: H.264
- Audio codec: AAC, 48 kHz, 64 kbps minimum
- Frame rate: 10–60 fps (30 recommended)
- Bitrate: 5,000–10,000 kbps for clean 1080p
- Max file size: 5 GB
- Min resolution: 256 × 144 px
- Max resolution: 4096 × 2304 px
Video Duration
| Upload Source | Min | Max |
|---|---|---|
| Mobile app | 3 sec | 10 minutes |
| Desktop web | 3 sec | 15 minutes |
| Video ads | 3 sec | 30 minutes |
Engagement drops sharply after 60 seconds for organic posts. Videos under 30 seconds see the highest watch-through rates. Use longer formats (5+ min) only for educational content where viewers came specifically for depth.
Captions Are Non-Optional
About 80% of LinkedIn videos auto-play silently in the feed. Without captions or burned-in subtitles, most viewers scroll past before unmuting. Two options:
- SRT file: Upload alongside the video. LinkedIn renders captions on top of the player.
- Burned-in: Render text into the video itself. Always shows; can't be turned off.
Burn captions in for the first 3 seconds at minimum so the hook is visible without sound.
Tips for Better LinkedIn Video Performance
- Upload native — never link out to YouTube/Vimeo
- Use square (1:1) or vertical (9:16) for organic mobile feed
- Open with motion, text, or a clear hook in the first 3 seconds (silent autoplay)
- Keep videos under 60 seconds for organic posts
- Always add captions (SRT or burned-in)
- Use H.264 to avoid double encoding (LinkedIn re-encodes everything to H.264)
- Need to crop landscape footage to square or vertical? Use our resizer to convert without quality loss.
Frequently Asked Questions
What is the LinkedIn video size?
The LinkedIn video size is 1920 × 1080 pixels at a 16:9 aspect ratio for landscape video. Square (1080 × 1080) and vertical (1080 × 1920) are also supported and often outperform landscape on the mobile feed.
What is the LinkedIn video aspect ratio?
LinkedIn supports three aspect ratios: 16:9 (landscape, 1920 × 1080), 1:1 (square, 1080 × 1080), and 9:16 (vertical, 1080 × 1920). Square and vertical perform better on mobile feeds because they take up more screen space.
What is the maximum file size for a LinkedIn video?
The maximum file size for LinkedIn videos is 5 GB on both desktop and mobile uploads. For the smoothest upload, keep files under 500 MB and use H.264 video codec with AAC audio.
How long can a LinkedIn video be?
LinkedIn videos can be up to 10 minutes long when uploaded from mobile and up to 15 minutes when uploaded from desktop. The minimum length is 3 seconds. Videos under 60 seconds tend to get the most engagement.
What video format does LinkedIn accept?
LinkedIn accepts MP4 and MOV files. The recommended setup is MP4 with H.264 video codec and AAC audio codec at 48 kHz. ASF, AVI, FLV, WebM, and MPEG-1/2/4 are also supported but get re-encoded internally.
Should I use square or landscape video on LinkedIn?
Square (1:1) videos take up about 78% more screen space than landscape (16:9) on the mobile feed, which boosts thumb-stop rate and watch time. Use square for organic posts and 16:9 for video ads or content that will be cross-posted to YouTube.
Why does my LinkedIn video have low engagement?
LinkedIn rewards native uploads over YouTube embeds (around 5× more reach). Upload at 1920 × 1080, use square or vertical for mobile, add captions (most people watch muted), and keep the first 3 seconds high-impact since LinkedIn auto-plays without sound.
Do LinkedIn videos need captions?
Captions are not required but strongly recommended. About 80% of LinkedIn videos play silently in the feed, so a video without captions or burned-in subtitles loses most of its message. Upload an SRT file or burn captions into the video itself.