Supported ad sizes

Ad Manager supports a variety of ad sizes. To optimize performance, you may want to adhere to the top performing ad sizes listed.

To help you choose ad sizes that best complement your pages, we've put together the following tables, along with some suggested guidelines for using custom sizes:

Top performing ad sizes
Other supported ad sizes
Regional ad sizes

Similar-sized ads and ad slot expansion

To help increase competition for a particular ad size, we might substitute a text ad or similar-sized display ad to appear within the ad slot. When this happens, the size of the similar ad is modified (using advanced imaging techniques) if needed and then served in the ad slot.

The new ad size does not necessarily match the full width or height of the ad slot. You can control which creative sizes fill your ad slots using the Flexible sizes rule type

Some ad slots are automatically expanded up the maximum width allowed on a device. Ad slot expansion currently applies to backfill display and out-stream video ad slots on mobile web. Google Ad Manager 360 publishers can disable ad slot expansion.


Top performing ad sizes

Ad size Description
728x90 Also known as a "leaderboard." Tends to have more ad inventory available from advertisers, which can increase earnings when both text and image ads are enabled.

Performs well if placed above main content, and on forum sites.

Can also be used with tablet-optimized pages.
336x280 Also known as a "large rectangle." Tends to have more ad inventory available from advertisers, which can increase earnings when both text and image ads are enabled.

Performs well when embedded within text content or at the end of articles.
300x250 Also known as a "medium rectangle." Tends to have more ad inventory available from advertisers, which can increase earnings when both text and image ads are enabled.

Performs well when embedded within text content or at the end of articles.
160x600 Also known as a "wide skyscraper." Tends to have more ad inventory available from advertisers, which can increase earnings when both text and image ads are enabled.

Best if used along sidebars of webpages.

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Other supported ad sizes

Ad size Description
1024x768  
970x250 High demand in preferred deals and private auctions.
970x90 Sometimes referred to as a "large leaderboard."

This size is ideal to showcase High-Definition content such as videos, photos, animations, and applications.
970x66  
960x90  
768x1024  
640x480  
480x320  
468x60 Also known as a "banner." This format can fit into smaller spaces that don't accommodate the 728x90 leaderboard.

The supply of available display ads for this ad size is generally limited though, which may lead to sub-optimal ad performance.

Can also be used with tablet-optimized pages.
400x300  
320x480  
320x100 Mobile-driven ad format that provides twice the height of standard mobile banners.
320x50 Also known as the "mobile leaderboard." This format is a mobile-optimized banner.

These ads fill the width of a smartphone screen (e.g., iPhone, Android, BlackBerry 6 etc.).
300x1050
300x600 Sometimes referred to as a "half page." This format provides a larger space for advertisers to get their message across and can offer users rich engagement.

The 300x600 is one of the fastest growing sizes by impressions and is indicative of a trend where publishers are offering more visually impactful ad sizes that are preferred by brand advertisers.
300x100 Mobile-friendly web size
300x75  
300x50 Mobile-friendly web size
300x31  
292x30  
250x250 Also known as a "square," this format can fit into smaller spaces that don't accommodate the larger rectangles.

The supply of available display ads for this ad size is generally limited though, which may lead to sub-optimal ad performance.
240x133  
234x60 Also known as a "half banner." This format can fit into small spaces.

This size doesn't tend to perform as well as others due to its small size and limited supply of available display ads.
220x90  
216x54  
216x36  
200x446  
200x200 Also known as a "small square," this format can fit into smaller spaces that don't accommodate the larger rectangles.

The supply of available display ads for this ad size is generally limited though, which may lead to sub-optimal ad performance.
180x150 Also known as a "small rectangle," this format can fit into small spaces.

This size doesn't tend to perform as well as others due to its small size and limited supply of available display ads.
168x42  
168x28  
160x600  
125x125 Also known as a "button," this format can fit into small spaces.

This size doesn't tend to perform as well as others due to its small size and limited supply of available display ads.
120x600 Also known as a "skyscraper," this format can fit into narrower spaces that don't accommodate the 160x600 wide skyscraper.

The supply of available display ads for this ad size is more limited though, which may lead to sub-optimal ad performance.
120x240 Also known as a "vertical banner," this format can fit into small spaces.

This size doesn't tend to perform as well as others due to its small size and limited supply of available display ads.
120x90  
120x60 Also known as a "button," this format can fit into small spaces.
120x30  
120x20  
88x31 Also known as a "button," this format can fit into small spaces.
Interstitials Used for full screen ads. Only supported by mobile-apps.

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Regional ad sizes

Ad size Description
980x120 Also known as a "panorama." Most popular size in Sweden and Finland. Can also be used as a substitute in Norway. Performs well when placed above main content.
980x90 Popular European size.
950x90 A top size in China.
930x180 Also known as a "top banner." Very popular size in Denmark. Performs well when placed above main content.
750x300 The third most popular format in Poland (17% of advertising campaigns) and constitutes main alternative for 750x200.
750x200 The most popular ad format in Poland used in 53% of advertising campaigns. Performs the best when is placed above or just below the menu of the website.
750x100 A very popular format in Poland performing well in both branding and direct response advertising campaigns.
580x400 Also known as a "netboard." Very popular size in Norway. Performs well when embedded within text content.
250x360 Also known as a "triple widescreen." Second most popular size in Sweden. Performs well when placed along webpage sidebars.
240x400 Also known as a "vertical rectangle." Most popular size in Russia.

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