Social Media Specs
Threads Image Sizes and Video Specs (2026)
The Threads specs that matter when you post: post text up to 500 characters, carousel 2 to 20 items, and a 1080 x 1350 (4:5) image as a safe size. Every figure below comes from Threads's own documentation, checked September 2026.
Updated
Threads Image and Video Sizes
| Format | Size (px) | Ratio | Note |
|---|---|---|---|
| Image | 1080 x 1350 | 4:5 | Markaestro suggestion within the limits. Inside the 320-1,440 px width range. |
| Video | 1080 x 1920 | 9:16 | Published by Threads. Threads recommends 9:16 for video. |
Threads Text Limits
| Spec | Limit |
|---|---|
| Post text | 500 characters |
Threads Image Requirements
| Spec | Limit |
|---|---|
| Formats | JPEG and PNG |
| Max file size | 8 MB |
| Width | 320 to 1,440 px |
| Aspect ratio | Up to 10:1 |
Threads Video Requirements
| Spec | Limit |
|---|---|
| Container | MOV or MP4 |
| Codec | HEVC or H.264, AAC audio |
| Frame rate | 23 to 60 FPS |
| Length | Up to 5 minutes |
| Max file size | 1 GB |
| Aspect ratio | 9:16 recommended |
Multiple Images and Carousels
| Spec | Limit |
|---|---|
| Carousel | 2 to 20 items |
How Markaestro Handles These Limits
The Markaestro composer checks Threads posts against a 500-character caption limit and up to 20 media items while you write, and the media library accepts images up to 10 MB and video up to 250 MB. See scheduling Threads posts.
Frequently Asked Questions
What size should Threads posts be?
1080 x 1350 pixels (4:5) for a image. Inside the 320-1,440 px width range.
What is the Threads character limit?
Post text: 500 characters.
How long can a Threads video be?
Up to 5 minutes.
What is the Threads file size limit?
1 GB.