320×100 ad size: the large mobile banner.

Phones: under the header, between paragraphs and above comments on mobile pages and in apps. Below: four real Adeagle ads in 320×100 - click one to land on the product, the way a shopper would.

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

320×100 banner ad example: several products with prices from a Shopify store (Blue Silk Tuxedo)
Several products with prices320×100 · opens the product in our demo store
320×100 banner ad example: several products from a Shopify store (Blue Silk Tuxedo)
Several products320×100 · opens the product in our demo store
320×100 banner ad example: one product with its price from a Shopify store (Blue Silk Tuxedo)
One product with its price320×100 · opens the product in our demo store
320×100 banner ad example: one product from a Shopify store (Blue Silk Tuxedo)
One product320×100 · opens the product in our demo store

320×100 at a glance

Size
320 × 100 pixels, landscape
Names
Large mobile banner
Google Ads name
Large 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
1.1% in our network
Click rate
1.91% - 3.4× the average banner

When to use the 320×100

Good for: Twice the height of 320×50, and in our network about six times its click rate - the best mobile banner for products.

Watch out: Fewer slots than 320×50, so it has less reach.

Design tips for 320×100 ads

  • Tiles are tall (45×72): portrait photos of the product alone.
  • If you choose one mobile size to test, test this one.
  • Keep the file under 150 KB and export it at exactly 320×100; design at 640×200 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 320×100 performs in our network

What we see on Adeagle
320×100 against the average banner
320×100 large mobile banner1.91%
Average banner0.56%
320×50 mobile leaderboard0.33%
300×250 medium rectangle0.60%
Click rate = counted clicks ÷ banner impressions, August 1 to September 26, 2026; 2,201,475 impressions of Shopify product ads in all sizes. 320×100 ranks 5 of 15 sizes by click rate and carried 1.1% of the impressions.

Sizes to run with the 320×100

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.

↳ Do shoppers click my ads?
your-store.com/products/winter-jacket
Winter jacket$89Shop now
Winter jacket · $89Shop
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 320×100 ad size

A 320×100 ad is called the large mobile banner. Google Ads lists it as "Large mobile banner".

Phones: under the header, between paragraphs and above comments on mobile pages and in apps.

150 KB per image in Google Ads, as a JPG, PNG or GIF; most other networks use the same limit. Design at 2× (640×200) for sharp phone screens and export at 320×100.

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

Twice the height of 320×50, and in our network about six times its click rate - the best mobile banner for products. In our network it got a 1.91% click rate - 3.4× the average banner (0.56%) - and was 1.1% of all banner impressions.

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