Standard Web Banner Sizes

The Interactive Advertising Bureau (IAB) specifies standard size advertising banner sizes. The size of your banner ad is important because the sites you want to advertise on may only accept certain size ads and typically charge more for larger ads. Webmasters often set file size limitations on specific banner ads too as any image, especially multi-frame animated images add to the overall file size of the web page and thus increase the download time.

There is, however, a problem with using standard banner ad sizes which is that ad blocking software will block any standard size web banner by recognizing the standard ad sizes. This is one reason non-standard banner ad sizes are becoming more popular. Non-standard banner ad sizes are not an issue if the banners are displayed on a website owned by you.

Sizes for rectangular / pop-up ads

Sizes for banner / button ads

Large Rectangle: 336 x 280 IMU Medium Rectangle: 300 x 250 IMU Square Pop-Up: 250 IMU Pop-Under: 720 x 300 IMU Vertical Rectangle: 240 x 400 IMU Rectangle: 180 x 150 IMU 3:1 Rectangle: 300 x 100 IMU Sizes for "Skyscraper" ads Skyscraper: 120 x 600 IMU Wide Skyscraper: 160 x 600 IMU Half Page Ad: 300 x 600 IMU

Leaderboard: 728 x 90 IMU Full Banner: 468 x 60 IMU Half Banner: 234 x 60 IMU Button 1: 120 x 90 IMU Button 2: 120 x 60 IMU Micro Bar: 88 x 31 IMU Micro Button: 80 x 15 IMU Vertical Banner: 120 x 240 IMU Square Button: 125 IMU

STANDARD BANNER AD SIZES IN PIXELS UNITS OF MEASURE:

The IAB refers to banner ads as Interactive Marketing Units (IMU) Ad Formats and regularly approves new sizes and types (rectangle, pop ups, sky scrapers, etc.) Here are a few of the traditional sizes:

Leaderboard - 728 x 90 pixels Full Banner - 486 x 60 pixels Half Banner - 234 x 60 pixels Rectangle - 180 x 150 pixels Square Button - 125 x 125 pixels Micro Bar - 88 x 31 pixels Skyscraper - 120 x 600 pixels Wide Skyscraper - 160 x 600 pixels Large Rectangle - 336 x 280 pixels