Google Ads — Uploaded Display — Large Mobile Banner 320x100

Display banner · Display · Verified 2026-06

Live preview

320×100

shown at 100%

In context

On a web page

Full specification

Size (px)

Ratio16:5

Max weight150 KB (GIF/JPG/PNG); 600 KB (HTML5 ZIP)

FormatsGIF, JPG, PNG, HTML5 (ZIP)

Notes & best practice

Large mobile banner.

Supported mobile sizes are 300x50, 320x50, and 320x100.

Standard GIF and HTML5 rules apply.

Official doc All Google Ads sizes Compare “Display banner” across platforms

Frequently asked questions

What size is the Google Ads Uploaded Display — Large Mobile Banner 320x100?

The Google Ads Uploaded Display — Large Mobile Banner 320x100 is 320×100 px, aspect ratio 16:5.

What is the aspect ratio of the Google Ads Uploaded Display — Large Mobile Banner 320x100?

16:5. At the recommended resolution that is 320×100 px.

What is the maximum file size for the Google Ads Uploaded Display — Large Mobile Banner 320x100?

Up to 150 KB (GIF/JPG/PNG); 600 KB (HTML5 ZIP), in GIF, JPG, PNG, HTML5 (ZIP).

What file formats does Google Ads accept for the Uploaded Display — Large Mobile Banner 320x100?

GIF, JPG, PNG, HTML5 (ZIP).

Why does Google Ads crop my Uploaded Display — Large Mobile Banner 320x100?

Google Ads shows Uploaded Display — Large Mobile Banner 320x100 at 16:5. Upload exactly 320×100 px and keep key content in the safe area so nothing gets cut off.

Is 320×100 still correct for the Google Ads Uploaded Display — Large Mobile Banner 320x100 in 2026?

Yes. Last verified 2026-06 against the official Google Ads documentation.

Check your creative

Test a file against this exact spec before you upload it anywhere.

Nothing is uploaded or saved — the check runs entirely in your browser.

Drag & drop your creative or click to choose a file