Threads · Post image (square)
1080 × 1080 px
Re-encoded to 1080 px wide like Instagram.
Threads follows Instagram's image handling closely, including the 1080 px maximum width.
| Placement | Size | Ratio | Notes |
|---|---|---|---|
| Post image (square) | 1080 × 1080 | 1:1 | Re-encoded to 1080 px wide like Instagram. |
| Post image (portrait) | 1080 × 1350 | 4:5 | The tallest ratio shown uncropped. |
| Profile picture | 320 × 320 | 1:1 | Circular crop. |
Aspect ratios used by Threads
Questions
What size should a Threads post image (square) be?
1080 × 1080 px (1:1). Re-encoded to 1080 px wide like Instagram.
What are all the Threads image sizes?
Post image (square) 1080×1080, Post image (portrait) 1080×1350, Profile picture 320×320. The table above lists the aspect ratio for each.
Does Threads compress uploaded images?
Yes — every major platform re-encodes. Threads follows Instagram's image handling closely, including the 1080 px maximum width.
Other platforms
Dimensions are the platform's recommended upload sizes, last checked 2026-08-07. Platforms revise these without notice — if you spot a change, let us know.