Threads image & video sizes
Threads accepts square and portrait images, much like Instagram. Square (1080 × 1080) is a safe default; portrait (4:5) gets a bit more feed space.
TypeDimensionsRatio
Image — square1,080 × 1,080 px1:1
Image — portrait1,080 × 1,350 px4:5
Profile photo320 × 320 px1:1
Video1,080 × 1,920 px9:16
Recommended sizes as of 2026. Networks adjust specs and some accept a range — verify the current size before publishing.
FAQ
Threads sizes, answered
What image size does Threads use?
Square at 1080 × 1080 px is a reliable default; portrait 1080 × 1350 px (4:5) also works and uses slightly more feed space.
Can you post video on Threads?
Yes — vertical 9:16 (1080 × 1920 px) matches the mobile feed best.
Size it, then schedule it
Compose, preview natively at the right size, and schedule Threads posts — free.