320×50 ad size: the mobile leaderboard.

Stuck to the top or bottom of the screen on phones ("anchor" ads) and across app screens. Below: four real Adeagle ads in 320×50 - click one to land on the product, the way a shopper would.

Free · real ads · our own data · reviewed October 2026

320×50 banner ad example: several products with prices from a Shopify store (Navy Sports Jacket)
Several products with prices320×50 · opens the product in our demo store
320×50 banner ad example: several products from a Shopify store (Navy Sports Jacket)
Several products320×50 · opens the product in our demo store
320×50 banner ad example: one product with its price from a Shopify store (Navy Sports Jacket)
One product with its price320×50 · opens the product in our demo store
320×50 banner ad example: one product from a Shopify store (Navy Sports Jacket)
One product320×50 · opens the product in our demo store

320×50 at a glance

Size
320 × 50 pixels, landscape
Names
Mobile leaderboard, mobile banner, anchor banner
Google Ads name
Mobile banner
Screens
Phones and apps
File size
up to 150 KB (JPG, PNG, GIF)
In an Adeagle ad
6 products in a grid, or one product with its name
Share of impressions
45.2% in our network
Click rate
0.33% - 41% below the average banner

When to use the 320×50

Good for: The most available size on phones - a large share of all mobile ad space.

Watch out: The lowest click rate in our network: people scroll past a thin strip they see on every page.

Design tips for 320×50 ads

  • Six tiles of 45×29 pixels: one object per photo, plain background.
  • If you can, run 320×100 next to it - twice the height, several times the clicks in our data.
  • Keep the file under 150 KB and export it at exactly 320×50; design at 640×100 so it stays sharp on phones.
  • Show a price - across all sizes, ads with prices got more clicks than the same ads without.

How the 320×50 performs in our network

What we see on Adeagle
320×50 against the average banner
320×50 mobile leaderboard0.33%
Average banner0.56%
300×250 medium rectangle0.60%
300×50 mobile banner0.51%
Click rate = counted clicks ÷ banner impressions, August 1 to September 26, 2026; 2,201,475 impressions of Shopify product ads in all sizes. 320×50 ranks 15 of 15 sizes by click rate and carried 45.2% of the impressions.

Sizes to run with the 320×50

One size never covers every slot. These fit the same screens:

Or see all 15 standard ad sizes drawn to scale. Adeagle makes every one of them from your product photos, names and prices - no design work, and a new product appears in every size the day you add it.

Sources: Adeagle network data (August 1 to September 26, 2026); Google Ads image ad specifications. The example ads use the products of Adeagle's demo store.

More Banner ad sizes and design tools

All banner sizes on one page, and what their clicks are worth.

Impressions10,000
Clicks80
click-through rate0.8%

CTR calculator

Your click-through rate, and how it compares with a typical small store.

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Winter jacket$89

Your product as an ad

Coming soon

Paste a product link and see it as ads in every size - the way Adeagle shows it.

↳ How does my product look as an ad?

Questions about the 320×50 ad size

A 320×50 ad is called the mobile leaderboard (also mobile banner, anchor banner). Google Ads lists it as "Mobile banner".

Stuck to the top or bottom of the screen on phones ("anchor" ads) and across app screens.

150 KB per image in Google Ads, as a JPG, PNG or GIF; most other networks use the same limit. Design at 2× (640×100) for sharp phone screens and export at 320×50.

Adeagle shows 6 products in a grid, or one product with its name in this size, each with its price if you choose.

The most available size on phones - a large share of all mobile ad space. In our network it got a 0.33% click rate - 41% below the average banner (0.56%) - and was 45.2% of all banner impressions.

Want another tool? Tell us which one: [email protected]