Why cross-post from Facebook to TikTok?
If you have built an audience on Facebook, TikTok gives you access to a completely different demographic. Facebook skews 25-55; TikTok skews 16-34. The content that works is different too—TikTok rewards authenticity, trends, and fast hooks over polished, community-style Facebook content.
Facebook Specs
- Caption limit
- 8,000 chars
- Max hashtags
- 3
- Aspect ratios
- 16:9, 1:1, 4:5
- Media formats
- JPG, PNG, MP4, MOV
- Max video length
- 4 min
- Max file size
- 1000 MB
- Best times
- 9 AM - 10 AM, 3-4 PM
- Links in posts
- Yes
Facebook Specs
- Caption limit
- 8,000 chars
- Max hashtags
- 3
- Aspect ratios
- 16:9, 1:1, 4:5
- Media formats
- JPG, PNG, MP4, MOV
- Max video length
- 4 min
- Max file size
- 1000 MB
- Best times
- 9 AM - 10 AM, 3-4 PM
- Links in posts
- Yes
TikTok Specs
- Caption limit
- 2,200 chars
- Max hashtags
- 10
- Aspect ratios
- 9:16, 1:1
- Media formats
- MP4, MOV
- Max video length
- 3 min
- Max file size
- 100 MB
- Best times
- 6-10 AM, 7-9 PM
- Links in posts
- No
How to cross-post from Facebook to TikTok
- 1
Choose your most engaging Facebook videos
Look at your Facebook video analytics. Posts with high watch time and shares are the best candidates for TikTok.
- 2
Reformat to 9:16 vertical
Facebook supports multiple formats. TikTok requires 9:16 vertical. Crop landscape videos to vertical.
- 3
Clip to 15-60 seconds
Facebook videos can be long. TikTok performs best at 15-60 seconds. Clip the most engaging moment.
- 4
Rewrite caption for Gen Z
Facebook captions are long and conversational. TikTok captions should be short, hooky, and trend-aware.
- 5
Add trending TikTok sounds and hashtags
Layer trending audio and use 5-10 TikTok hashtags including niche and discovery tags.
Formatting tips for Facebook to TikTok
Vertical format is essential
Facebook uses 16:9 and 1:1. TikTok requires 9:16. You must reformat.
Short clips only
Facebook supports 4-hour videos. TikTok max is 3 minutes, but 15-60 seconds performs best.
Casual, trendy captions
Replace Facebook's conversational paragraphs with punchy TikTok hooks.
Common mistakes to avoid
Posting full-length Facebook videos on TikTok
Long Facebook videos bomb on TikTok. Clip the single best 15-60 second moment.
Facebook-style captions on TikTok
TikTok users expect short, hooky captions. Rewrite completely for the platform.
No trending sounds
TikTok's algorithm heavily favors content with trending audio. Add relevant trending sounds.
Pro Tip
Your most-shared Facebook videos often contain universal moments that resonate across demographics. These are your best candidates for TikTok—they have already proven audience appeal.
Frequently asked questions
Can Facebook videos work on TikTok?
Yes, but they need significant reformatting. Crop to 9:16 vertical, clip to 15-60 seconds, add trending sounds, and rewrite the caption for TikTok's younger audience.
What age group uses TikTok vs Facebook?
TikTok skews 16-34 while Facebook skews 25-55. Your content strategy should adapt for these different demographics.
Should I create separate content for each platform?
Cross-posting saves time, but always adapt the format and caption. The same core content can work on both with proper reformatting.