Threads Post Size and Specs (2026)
Every Threads limit below comes from the rules PostQuest uses to check posts before they publish. Publishing limits were last verified on .
- Main post size
- 360–1,440 px wide · Under 10:1 · Up to 8 MB
- Photo Post
- Caption limit
- 500 characters
- Video aspect ratio
- 0.01:1 to 10:1; 9:16 recommended
- Video Post
Threads image and video specs
Text Post and Link Post use only the caption limit, so they have no media table.
Photo Post1 file
| Spec | Image |
|---|---|
| Dimensions | 360–1,440 px wide |
| Aspect ratio | Under 10:1 |
| File size | Up to 8 MB |
| Formats | JPEG, PNG |
Video Post1 file
| Spec | Video |
|---|---|
| Dimensions | Up to 1,920 px wide |
| Aspect ratio | 0.01:1 to 10:1; 9:16 recommended |
| File size | Up to 1 GB |
| Length | 1 s–5 min |
| Formats | MP4, MOV |
| Frame rate | 23–60 fps |
| Bitrate | Video up to 25 Mbps; Audio up to 128 kbps |
Carousel Post2–20 files
| Spec | Image | Video |
|---|---|---|
| Dimensions | 360–1,440 px wide | Up to 1,920 px wide |
| Aspect ratio | Under 10:1 | 0.01:1 to 10:1; 9:16 recommended |
| File size | Up to 8 MB | Up to 1 GB |
| Length | Not specified | 1 s–5 min |
| Formats | JPEG, PNG | MP4, MOV |
| Frame rate | Not specified | 23–60 fps |
| Bitrate | Not specified | Video up to 25 Mbps; Audio up to 128 kbps |
Threads caption and hashtag limits
Caption limit
500 characters
- Threads posts are limited to 500 characters.
Hashtags
1 per post
- Only 1 tag is allowed per individual post.
Accounts that can publish
Any Threads account that authorizes the Meta app.
Threads profile and banner sizes
Threads does not publish official profile or banner dimensions in its help center, so we do not list any. We only show sizes we can verify on an official page.
Threads specs FAQ
What size should a Threads post be?
A Threads photo post must meet these limits: dimensions 360–1,440 px wide, aspect ratio under 10:1, and file size up to 8 MB. For a video post, the aspect ratio is 0.01:1 to 10:1; 9:16 recommended.
What is the Threads character limit?
Threads captions can be up to 500 characters long. Threads posts are limited to 500 characters.
How many hashtags can you use on Threads?
Threads allows up to 1 hashtag per post.
How long can a Threads video be?
A Threads video post can be 1 s–5 min long.
Sources
Publishing limits last verified against official API documentation. Profile sizes last verified .
More platform specs
Schedule posts that pass these checks
PostQuest validates every caption and file against these limits before a post is scheduled, so nothing fails at publish time.