There are quite a number of Google Adsense Ad formats and the common question is “which Google ad sizes give the highest earnings?“
Well, Google’s ad technology still is the best advertising network with a pool of advertisers and ad features, one of which are varieties of ad formats.
Some Google ad sizes perform so well while some according to lots of experiments have been said to give little or no result.
If you’re just starting out on making AdSense Earnings then you’ll also want to know how each ad unit contributes to your monthly revenue.
Why Google Ad Sizes Matter
Achieving a nice Click Through Rate is the goal here and having a clear visible ad upon page load is the way to achieve this.

Going for the ad size that is easily noticeable is the best option to go for as some ad sizes are not so conspicuous and may not encourage clicks.
Also, the number of advertisers running ads for ad formats presented on your site may affect your earnings, so, going for popular ad format matters.
List of Google Ads Formats
- 250 x 250 – Square
- 200 x 200 – Small Square
- 468 x 60 – Banner
- 728 x 90 – Leaderboard
- 300 x 250 – Inline Rectangle
- 336 x 280 – Large Rectangle
- 120 x 600 – Skyscraper
- 160 x 600 – Wide Skyscraper
- 300 x 600 – Half-Page Ad
- 970 x 90 – Large Leaderboard
The only ad size that’s not available on a desktop/tablet but is available on high-end mobile devices is:
- 320 x 50 – Mobile Leader board
So, out of all these, which are the best Google Ad formats that promise high earnings?
Knowing the maximum number of Adsense Ads to be served per page in one way will affect CTR but increase CPC
Top 5 Performing Google Ad Formats
After creating your Adsense account, one of the first things you want to do is create Ad units by choosing top performing ad formats.
Right below is the list of top 5 performing Adsense ad sizes.
1. Inline Rectangle (300*250)
Image by wpbeginner
It is also called the medium rectangle and it is the most popular ad size on the internet.
The ad size is suitable for display ads and text ads and is apt for mobile users. Also it fits into the content area or side bar without interrupting user engagement.
Since it’s perfectly-sized for in-content ads, it is also reported to have the best CTR for most websites.
2. Large Rectangle Size (336*280)

Next performing Adsense advert format for high earnings is the 336*280 large rectangle ad sizes.
It is larger and more noticeable than the medium rectangle ad above, but it may not fit in all website sidebars and is not mobile optimized.
3. Leader Board (728*90)

Leader board 728 by 90 ad format is the next converting ad size that is being used by top bloggers in the world.
This ad size is apt for website headers (can be placed inside or immediately after) and it accepts text and image inventory and commands more clicks.
4. Half Page Sky Scraper (300*600)
This ad size is often called the “half page” size, even though it doesn’t quite cover up a full half page.
The purpose is to give advertisers a little more elbow room to get their message across. As you’re taking up more space, you’ve got a better shot at drawing the eye and getting a click.
5. Large Mobile Banner Ad (320*100)

This ad format is an equivalent of the leaderboard ad format in terms of effectiveness but for mobile devices.
Since a larger percentage of site traffic comes from mobile, this ad size can be placed as a less intrusive ad and as an alternative to the medium rectangle ad format.
Thee you have it, the top performing ad sizes that promises high click through rate and revenue.