IAB Standards Mobile Banner ad specs

IAB Standards Mobile Banner ads are horizontal 32:5 still images, measured at 320×50 px, up to 0.2 MB per file, delivered as JPG, PNG, GIF, or HTML. They run in the Top or bottom of mobile viewport placement on IAB Standards. Use these requirements to brief designers, validate uploads, and avoid creative rejections in IAB Standards's ad manager.

Visual specifications

Dimensions320 × 50 px
Aspect ratios32:5
Orientationlandscape
Max file size0.2 MB
File typesJPG, PNG, GIF, HTML

Notes & source

Standard mobile banner unit. Max initial load 200 KB. Must render correctly on both iOS and Android mobile browsers.

Official source: https://www.iab.com/guidelines/iab-new-ad-portfolio/

Frequently asked questions

What size are IAB Standards Mobile Banner ads?
IAB Standards Mobile Banner ads are 320×50 pixels with an aspect ratio of 32:5.
What aspect ratio does IAB Standards Mobile Banner use?
IAB Standards Mobile Banner supports 32:5 aspect ratio.
What is the maximum file size for IAB Standards Mobile Banner?
Files for IAB Standards Mobile Banner can be up to 0.2 MB.
Which file formats does IAB Standards Mobile Banner accept?
IAB Standards Mobile Banner accepts JPG, PNG, GIF, and HTML files.
What is the IAB Standards Mobile Banner ad format?
IAB Standards Mobile Banner is a image ad format that runs in the Top or bottom of mobile viewport placement on IAB Standards. This page documents its full creative requirements, sourced from IAB Standards's official ad documentation.
Where does IAB Standards Mobile Banner appear on IAB Standards?
IAB Standards Mobile Banner ads appear in the Top or bottom of mobile viewport placement on IAB Standards.
How does IAB Standards Mobile Banner compare to other IAB Standards ad formats?
IAB Standards Mobile Banner differs from other IAB Standards placements in its 320×50px canvas, and a 0.2MB file ceiling. Compare side-by-side from the IAB Standards publisher page on All Ad Specs.
Where can I find the official IAB Standards Mobile Banner documentation?
The official source for IAB Standards Mobile Banner requirements is https://www.iab.com/guidelines/iab-new-ad-portfolio/, linked from this page.