Threads post image size
As of July 2, 2026, the Threads post image is 1080 by 1350 pixels (4:5). Below is the full spec, then a resizer already set to that size so you can export a perfectly fitted image.
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About the Threads post image size
Threads uses the same image ratios as Instagram, so 1080 by 1350 portrait (4:5) is the size that fills the most feed space, with 1080 by 1080 square and 1080 by 566 landscape also supported. Since Threads and Instagram share an account and a design language, you can reuse the exact same exports across both. Upload at 1080 pixels wide so text stays legible, and lead with portrait if you only make one size.
Quick tips
- 01Portrait 1080 by 1350 (4:5) fills the most feed space, same as Instagram.
- 02Square and landscape work too; reuse your Instagram exports.
- 03Upload at 1080px wide so any in-image text stays crisp.
Frequently asked questions
What aspect ratio is the Threads post image?
Looking up the number rather than the platform? What 1080x1350 is, and everything else that uses it.
4:5 is a shape, not just this size. See every image size that uses the 4:5 aspect ratio, where it comes from, and how to crop into it.
Related sizes
How this spec was checked
Platform sizes change without notice, so this entry records what it was verified against rather than stating a number and hoping it holds. Last checked July 2, 2026.
ConventionThreads does not publish a size for this surface. The number below is the one the industry has standardised on, which is a useful answer but not a claim about Threads.
Every spec on this site carries one of those two labels. See the cheat sheet for the full split, and the changelog for every correction with the date it happened.
See all Threads sizes, the full cheat sheet, or grab this spec from the JSON API.