The sizes in detail
Display ad sizes are measured in pixels, width × height. The web banner dimensions below are the standard IAB ad sizes you will find on most websites and in most ad networks, including Google's display network, so a banner made for one site usually works on many others.
- 728×90 Leaderboard
- 300×250 Medium Rectangle
- 336×280 Large Rectangle
- 160×600 Skyscraper
- 300×600 Half Page
- 468×60 Full Banner
- 250×250 Square
- 320×50 Mobile Banner
728×90 Leaderboard
Where it appears: Across the top of a page, above or below the main navigation.
Best for: Brand visibility on desktop; it is often the first ad a visitor sees.
Devices: Desktop and tablet.
Buy a 728×90 leaderboard ad: $10 for 30 days.
300×250 Medium Rectangle
Where it appears: In the sidebar or between paragraphs of an article.
Best for: Almost any campaign. It is the most widely supported banner size and fits on every screen.
Devices: Desktop, tablet and mobile.
Buy a 300×250 medium rectangle ad: $10 for 30 days.
336×280 Large Rectangle
Where it appears: Inside article content or at the end of a post.
Best for: More room for a product image and a clear call to action than the 300×250.
Devices: Desktop and tablet.
Buy a 336×280 large rectangle ad: $10 for 30 days.
160×600 Skyscraper
Where it appears: In a tall sidebar column beside the content.
Best for: Staying on screen while visitors scroll; good for sequential messages and offers.
Devices: Desktop.
Buy a 160×600 skyscraper ad: $10 for 30 days.
300×600 Half Page
Where it appears: In the sidebar, where it takes up a large share of the screen.
Best for: High-impact campaigns: product launches, rich imagery and strong offers.
Devices: Desktop.
Buy a 300×600 half page ad: $10 for 30 days.
468×60 Full Banner
Where it appears: Above content, inside forums and in narrow page headers.
Best for: Simple text-led messages and tight budgets. It is the classic original banner size.
Devices: Desktop.
Buy a 468×60 full banner ad: $10 for 30 days.
250×250 Square
Where it appears: In sidebars and between content blocks on smaller layouts.
Best for: Logos, icons and short offers on sites with narrow columns.
Devices: Desktop and mobile.
Buy a 250×250 square ad: $10 for 30 days.
320×50 Mobile Banner
Where it appears: Across the top or bottom of a phone screen.
Best for: Reaching people on phones with a short message and a tap-friendly link.
Devices: Mobile.
Buy a 320×50 mobile banner ad: $10 for 30 days.
Which banner size should you choose?
- One size only? Choose the 300×250 medium rectangle. It fits on desktop and mobile layouts and is the most widely used size.
- Want to be seen first on desktop? The 728×90 leaderboard sits at the top of the page.
- Need room for imagery? The 300×600 half page and 336×280 large rectangle give your design the most space.
- Targeting phones? The 320×50 mobile banner is made for small screens.
- Long scrolling pages? The 160×600 skyscraper stays beside the content as people read.
Banner design tips that work at every size
- Use the exact pixel size. Ad spaces have fixed dimensions; an image that is a few pixels off gets rejected or squeezed.
- Keep the file small. Aim for well under 150 KB so your banner appears instantly. Save photos as JPEG or WebP and flat graphics as PNG.
- One message, one call to action. Visitors glance at a banner for a second or two. Say one thing and add a clear button such as "Shop the sale".
- Make text readable. Use short headlines, large type and strong contrast. Small sizes like 320×50 have room for only a few words.
- Show your brand. Put your logo or name where it is visible even if the banner is only noticed briefly.
- Animate with care. An animated GIF can draw attention, but keep it short and end on a frame that makes sense on its own.
- Add a border on white banners. A thin border stops a light banner from blending into the page.
Ready to order? See banner ad pricing or read how to buy banner ads step by step.