Threads Sizes & Dimensions Guide
Threads image and video sizes for posts and clips. PostFast applies them when you schedule to Threads.
All Threads Sizes at a GlanceUpdated 2026
Every Threads content type with its recommended dimensions, aspect ratio, and limits. Tap any content type for the full specification.
Why Threads sizes matter
Threads is a fast, text-first feed from Meta, but images and video still drive engagement, and the app favors a vertical frame on mobile. Sizing media correctly keeps it sharp and fully visible instead of cropped or shrunk in the feed.
Threads content specificationsUpdated 2026
Post
Updated 2026Image posts display best at 1080x1350px (4:5). Threads accepts up to 9:16, but the feed crops taller media to 4:5, so keep the key subject centered.
Video
Updated 2026Threads video can run up to 5 minutes. It accepts 1.91:1 to 9:16, but the feed crops anything taller than 4:5, so keep key content in the central 4:5 area.
Threads best practices and common mistakes
Best practices
- ✓Use 4:5 (1080x1350px) media for the most feed space without cropping.
- ✓Keep the subject centered so feed cropping does not cut it off.
- ✓Upload video as MP4 and keep clips under 5 minutes.
- ✓Use high-resolution images so they stay crisp after compression.
Common mistakes to avoid
- ✗Uploading small or low-resolution images that look soft.
- ✗Using wide landscape media that shows small in a vertical feed.
Developer Resources
Threads API Guides
Learn how to schedule Threads content programmatically via API
Frequently asked questions about Threads sizes
What are the Threads image and video sizes in 2026?
Threads sizes by content type: Post 1080×1350px, Video 1080×1920px. See the table above for the aspect ratio, file size, and supported formats of each one.
What is the best image size for Threads?
The recommended image size for Threads is 1080×1350px (4:5), used for posts. Upload at this size to avoid cropping and limit compression.
What aspect ratios does Threads use?
Threads uses 4:5 for posts and 9:16 for videos.
How long can Threads videos be?
On Threads, Video up to 300 seconds (5 minutes).
What file formats does Threads support?
Across its content types, Threads supports JPG, JPEG, PNG, GIF, MP4, and MOV. Use JPG for photos, PNG for graphics with text, and MP4 for video.
Does Threads compress images?
Threads re-encodes uploads like Instagram. Posting at 1080px wide in a vertical or square ratio keeps images sharp and limits visible compression.
Does Threads support landscape images?
Threads supports landscape and square images, but 4:5 portrait (1080x1350px) fills more of the feed. Taller media is cropped to 4:5, and wide landscape media shows smaller.
Sizes for other platforms
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