Google Display Ad Sizes & Specs Guide 2026
The Google Display Network (GDN) reaches over 90% of internet users worldwide through millions of websites, apps, and Google properties. Display ads on the GDN come in a wide variety of standard sizes, along with responsive display ads that automatically adapt to available placements. Using the correct dimensions ensures your ads render properly across the network. This guide covers all Google Display ad specifications for 2026.
All Google Display Ad Formats & Sizes
| Ad Type | Dimensions | Aspect Ratio | File Types | Max Size | Notes |
|---|---|---|---|---|---|
| Responsive Display Ad - Landscape Image | 1200 x 628 px | 1.91:1 | JPG, PNG | 5120 KB | Required for responsive display ads. Google automatically resizes for different placements. Recommended to provide multiple images. |
| Responsive Display Ad - Square Image | 1200 x 1200 px | 1:1 | JPG, PNG | 5120 KB | Required alongside landscape for responsive display ads. Higher resolution preferred. |
| Responsive Display Ad - Logo (Landscape) | 1200 x 300 px | 4:1 | PNG | 5120 KB | Landscape logo for responsive display ads. Transparent background recommended. |
| Responsive Display Ad - Logo (Square) | 1200 x 1200 px | 1:1 | PNG | 5120 KB | Square logo for responsive display ads. Transparent background recommended. |
| Leaderboard Banner | 728 x 90 px | 8.1:1 | JPG, PNG, GIF | 150 KB | One of the most common display ad sizes. Typically appears at the top of web pages. |
| Medium Rectangle | 300 x 250 px | 6:5 | JPG, PNG, GIF | 150 KB | Most widely available ad size on the GDN. Appears within article content and sidebars. |
| Wide Skyscraper | 160 x 600 px | 4:15 | JPG, PNG, GIF | 150 KB | Tall vertical banner typically placed in page sidebars. |
| Mobile Leaderboard | 320 x 50 px | 32:5 | JPG, PNG, GIF | 150 KB | Standard mobile banner size. Appears at the top or bottom of mobile web pages and apps. |
| Half Page (Large Skyscraper) | 300 x 600 px | 1:2 | JPG, PNG, GIF | 150 KB | Large vertical ad offering more creative space. High visibility and engagement rates. |
| Large Rectangle | 336 x 280 px | 6:5 | JPG, PNG, GIF | 150 KB | Larger version of the medium rectangle. Common in content areas. |
| Billboard | 970 x 250 px | 3.88:1 | JPG, PNG, GIF | 150 KB | Large format banner typically at the top of the page. High impact placement. |
| Square | 250 x 250 px | 1:1 | JPG, PNG, GIF | 150 KB | Small square ad. Less common but available on many placements. |
Format Details
Responsive Display Ad - Landscape Image
Required for responsive display ads. Google automatically resizes for different placements. Recommended to provide multiple images.
Responsive Display Ad - Square Image
Required alongside landscape for responsive display ads. Higher resolution preferred.
Responsive Display Ad - Logo (Landscape)
Landscape logo for responsive display ads. Transparent background recommended.
Responsive Display Ad - Logo (Square)
Square logo for responsive display ads. Transparent background recommended.
Leaderboard Banner
One of the most common display ad sizes. Typically appears at the top of web pages.
Medium Rectangle
Most widely available ad size on the GDN. Appears within article content and sidebars.
Wide Skyscraper
Tall vertical banner typically placed in page sidebars.
Mobile Leaderboard
Standard mobile banner size. Appears at the top or bottom of mobile web pages and apps.
Half Page (Large Skyscraper)
Large vertical ad offering more creative space. High visibility and engagement rates.
Large Rectangle
Larger version of the medium rectangle. Common in content areas.
Billboard
Large format banner typically at the top of the page. High impact placement.
Square
Small square ad. Less common but available on many placements.
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