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X (Twitter) header size: exact dimensions

The X header (banner) is 1500×500 pixels, a 3:1 ratio. The catch is the layout around it: your circular profile photo overlaps the bottom-left, and mobile crops the edges.

Open Social Media Image Resizer

The spec

PropertyValue
Header (banner)1500 × 500 px, 3:1
Profile photo400 × 400 px, shown as circle
Max file size5 MB
FormatsJPG, PNG, WebP

Safe zone

  • Bottom-left ~350×350 px is covered by your profile photo on desktop — keep it decoration only.
  • Mobile crops roughly 60px off the top and bottom; keep text vertically centered.
  • Test on both desktop and phone after uploading — the crop differs.

Tools used in this guide

Social Media Image ResizerResize images for every social platformCrop ImageCrop images to any area or aspect ratioImage ResizerResize images to any width and height

Related guides

Social media image sizes (2026)How to resize an image for InstagramHow to crop an image

X (Twitter) header size: exact dimensions — FAQ

1500 × 500 pixels, a 3:1 aspect ratio, under 5MB as JPG, PNG or WebP.