Threads post image size
1080 × 1350px
Aspect ratio
4:5
Use 1080 × 1350 px (4:5) for Threads images — the tallest shape that displays cleanly in the conversation feed.
Last verified June 2026
Threads is a text-first network, but posts with images take visibly more feed space — and because Threads runs on Meta’s Instagram infrastructure, the image pipeline will feel familiar: uploads are served at up to 1080 px wide, and 4:5 portrait (1080 × 1350 px) is the largest ratio that renders fully inline. Square and landscape work too; what changes is simply how much of the scrolling screen your post occupies between everyone else’s text.
| Variant | Dimensions | Ratio |
|---|---|---|
| Portrait (recommended) | 1080 × 1350 pxLargest clean inline rendering in the feed. | 4:5 |
| Square | 1080 × 1080 px | 1:1 |
| Landscape | 1080 × 566 pxGood for charts, screenshots, and link-style graphics. | 1.91:1 |
| Taller than 4:5 | anyVery tall images can be cropped in the feed preview — tap to expand shows the full image. | varies |
Threads renders images inside a rounded-corner card within the conversation column, so the extreme corners get shaved and the image sits narrower than a full-bleed Instagram post. Keep text and key subjects away from the outer 5% of the frame, and remember the image competes with your own post text above it — the picture should add evidence or punchline, not repeat the words.
Threads conversations reward a strong text hook; the image works best as proof — the screenshot, the chart, the before/after. Write the post so it stands alone, then attach the visual that makes people stop. A 4:5 crop of a screenshot with generous margins reads far better in the feed than a full-resolution capture with 9 px interface text.
The feed culture on Threads tolerates — even prefers — raw, native-feeling images over designed graphics. Phone photos, honest screenshots, and lightly annotated charts routinely outperform branded templates. Save the heavy design work for Instagram; on Threads, clarity and timeliness beat polish.
Because Threads shares Meta’s 1080-wide pipeline, every Instagram feed asset (4:5, 1:1, 1.91:1) republishes to Threads without rework. If you cross-post a campaign, schedule the same file to both — SocialKit publishes one upload natively to Threads, Instagram, and the rest of your platforms, so the export step happens once.
1080 × 1350 px (4:5 portrait) — it takes the most feed space while rendering fully inline. Square 1080 × 1080 and landscape 1080 × 566 also display cleanly.
Effectively yes — Threads runs on Meta’s infrastructure and serves images at up to 1080 px wide in the same ratios. Any Instagram feed export works on Threads unchanged.
Images up to 4:5 display fully in the feed. Taller uploads can be cropped in the preview, with the full image available on tap — so keep critical content inside a 4:5 region if you post tall graphics.
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