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Size guide

Banner sizes: the IAB guide and the most common ones

The most-used banner sizes, with their name, the device they appear on, and a to-scale view. Sizes marked IAB appear in the IAB guidelines, the association that publishes standard formats. Open one to see its use and tips.

Download the table (CSV)Size guide (PDF)
Shape
Device
30 sizes
SizeNameDeviceWhat it is for
300×250Medium RectangleIABDesktop and mobileOne of the most common formats: it fits on desktop and mobile, and many platforms accept it.336×280Large RectangleIABDesktopA larger version of the medium rectangle, designed for desktop.250×250SquareIABDesktopA compact square for small spaces on the page.200×200Small SquareIABDesktopA small square for tight spaces.180×150RectangleIABDesktopA small rectangle, one of the oldest formats on the IAB list.125×125ButtonIABDesktopA tiny square button.580×400NetboardIABDesktopA large, uncommon rectangle with plenty of room to tell a short story.728×90LeaderboardIABDesktopThe classic horizontal strip on desktop.970×90Large LeaderboardCommon formatDesktopA wide version of the leaderboard.970×250BillboardIABDesktopA large front-page format, with room for an image, a message, and a button.468×60Full BannerIABDesktopA traditional mid-size horizontal banner.234×60Half BannerIABDesktopA half horizontal banner.320×50Mobile LeaderboardIABMobileThe standard mobile banner.300×50Mobile BannerIABMobileA narrower version of the mobile banner, for small screens or older inventory.320×100Large Mobile BannerCommon formatMobileA large mobile banner: twice the height of the standard, with room for two lines of text.750×200Banner panorámico 750×200Common formatDesktopA wide, low panoramic banner, more common on certain publishers and networks than in the IAB guidelines.750×300Triple WidescreenIABDesktopA large desktop format that takes up much of the width of a content column.930×180Top BannerIABDesktopA wide top banner, one of the large front-page formats from the IAB.980×120PanoramaIABDesktopA wide, low panoramic banner for the top of the page.160×600Wide SkyscraperIABDesktopA wide skyscraper, a classic vertical.300×600Half PageIABDesktopHalf page: one of the desktop formats with the most visual presence without being a front-page format.120×600SkyscraperIABDesktopA narrow skyscraper, slimmer than the 160 px wide one.120×240Vertical BannerIABDesktopA small vertical banner, an older format on the IAB list.240×400Vertical RectangleIABDesktopA mid-size vertical rectangle, taller than a medium rectangle but narrower than a half page.250×360Banner vertical 250×360Common formatDesktopA vertical rectangle that appears on some publishers and networks; it is not in the IAB guidelines.300×1050PortraitIABDesktopPortrait: a very tall vertical format, the tallest desktop format on the IAB list.320×480Interstitial verticalIABMobileA full-screen mobile ad in portrait.480×320Interstitial horizontalIABMobileA full-screen mobile ad in landscape.768×1024Interstitial tablet verticalIABTabletA full-screen tablet ad in portrait.1024×768Interstitial tablet horizontalIABTabletA full-screen tablet ad in landscape.

Weight: BannerMotion measures each piece against a configurable limit. Each platform sets the actual limit: confirm it on yours.

Where to start

If you're unsure, start with these five: they cover desktop and mobile and are standard IAB formats. Then add whatever your campaign needs.

300×250Medium Rectangle728×90LeaderboardWide SkyscraperHalf Page320×50Mobile Leaderboard

Frequently asked questions

What is the IAB and why does it matter?

It is the association that publishes the standard ad formats (Interactive Advertising Bureau). Using those sizes makes it more likely that a publisher or platform will accept them.

How much should an HTML5 banner weigh?

It depends on the platform. BannerMotion measures the weight of each piece against a limit you set. Confirm the limit in your platform’s documentation.

Do I have to make each size by hand?

No. You describe the campaign once and each concept comes out in all the sizes you choose, with the same design adapted to each one.

Every size from a single prompt.

Describe your campaign and get a concept in all the sizes and languages you choose.

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