What is the best image size for Threads posts?

The best image size for Threads posts is 1080 x 1350 pixels (4:5 portrait ratio) for maximum feed presence, or 1080 x 1080 pixels (1:1 square) for versatility. Portrait images take up more vertical space in the feed, which tends to drive higher engagement.

What is the Threads profile picture size?

Threads profile pictures are synced from Instagram and are stored at 320 x 320 pixels. For the best quality, upload your profile picture through Instagram at 1080 x 1080 pixels. Profile pictures always display as circles, so keep important content centered.

What video specs does Threads support?

Threads supports videos up to 5 minutes long with a maximum file size of 1 GB. The recommended resolution is 1080 x 1080 pixels (1:1) or 1080 x 1920 pixels (9:16 vertical). Videos autoplay silently in the feed, so design them to communicate clearly without audio.

Does Threads support carousel posts?

Yes, Threads supports carousel posts with up to 10 images and/or videos. Unlike Instagram, Threads carousels allow mixing images and videos in the same post. Each slide can be up to 8 MB for images or 1 GB for videos.

What image formats does Threads support?

Threads supports JPEG and PNG image formats. JPEG is recommended for photographs and PNG for graphics with text or sharp edges. Each image must be under 8 MB in file size.

Threads Image Sizes and Media Specs Guide (2026)

Threads supports square (1:1), portrait (4:5), and landscape (16:9) images in posts. The recommended post image size is 1080 x 1080 pixels for square or 1080 x 1350 pixels for portrait. Profile pictures are shared from Instagram and display at 1:1. Each post supports up to 10 images and/or videos in a carousel format.

Published April 10, 2026

Threads Image Size Quick Reference

Content Type	Recommended Dimensions	Aspect Ratio	Max File Size
Post image (square)	1080 x 1080 px	1:1	8 MB
Post image (portrait)	1080 x 1350 px	4:5	8 MB
Post image (landscape)	1080 x 608 px	16:9	8 MB
Profile picture	320 x 320 px (min)	1:1	8 MB
Carousel (per image)	1080 x 1080 px or 1080 x 1350 px	1:1 or 4:5	8 MB
Video resolution	1080 x 1080 px or 1080 x 1920 px	1:1 or 9:16	1 GB
Max video length	Up to 5 minutes	--	--
Images/videos per post	Up to 10	--	--

Best Image Sizes for Threads Posts

Threads displays post images in square (1:1) and portrait (4:5) formats most prominently in the feed. The recommended size for square posts is 1080 x 1080 pixels and for portrait posts is 1080 x 1350 pixels. Portrait images take up more vertical feed space and generally drive higher engagement.

Landscape images (16:9) are supported and display at 1080 x 608 pixels in the feed. However, landscape format shows less of the image in the default feed view compared to square or portrait, making it less effective for visual impact in most cases.

Threads Profile Picture Size

Your Threads profile picture is shared directly from your Instagram account -- you cannot set a separate profile picture specifically for Threads. Instagram stores profile pictures at 320 x 320 pixels but displays them at smaller sizes on mobile (110 x 110 pixels) and desktop.

Because profile pictures are pulled from Instagram, upload your profile picture at 1080 x 1080 pixels through Instagram for the best quality. The image is always cropped to a circle, so keep your subject centered and avoid placing important elements near the corners.

Threads Video Specs

Threads supports videos up to 5 minutes long per attachment with a maximum file size of 1 GB. The recommended video resolution is 1080 x 1080 pixels (square, 1:1) for versatility or 1080 x 1920 pixels (vertical, 9:16) for full-screen immersive content. Videos are encoded in H.264 or H.265 for best compatibility.

The first frame of a video serves as the thumbnail preview in the feed. Ensure your video opens with a visually compelling frame that encourages users to tap and watch. Videos autoplay silently in the feed, so design your content to convey meaning without audio when first encountered.

Threads Carousel Support

Threads supports carousel posts with up to 10 images and/or videos per post. Unlike Instagram carousels, Threads allows mixing images and videos within the same carousel. All images in a carousel do not need to share the same aspect ratio, though using a consistent ratio creates a more polished look.

Carousel posts display a swipe indicator in the feed, prompting viewers to interact with additional slides. Using carousel posts to tell a visual story or present a step-by-step walkthrough is an effective way to increase time-on-post and overall engagement.

Tips for Visual Content on Threads

Use portrait (4:5) images at 1080 x 1350 pixels for maximum feed presence -- taller images occupy more screen real estate and naturally draw the eye.

Keep images under 8 MB and videos under 1 GB to avoid upload failures. Compress large files before attaching them to a post.

Update your profile picture through Instagram since Threads syncs directly from your Instagram account. Upload at 1080 x 1080 pixels for best quality.

Design video thumbnails (first frames) to be visually compelling because videos autoplay without sound in the feed -- your thumbnail determines whether viewers stop scrolling.

Use carousel posts with up to 10 slides to share step-by-step guides, product reveals, or visual stories that encourage viewers to swipe through.

Maintain a consistent aspect ratio across all slides in a carousel for a professional, cohesive look -- 1:1 or 4:5 are the most versatile options.

Frequently Asked Questions

Schedule Your Threads Posts with postr

Create, schedule, and publish Threads posts -- including carousels -- with postr. Plan your visual content calendar and publish at the optimal time for your audience.

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