320×50 ad size: the mobile leaderboard

Also called mobile banner, anchor banner · Google Ads: “Mobile banner”

Phones and appsup to 6 products≤ 150 KBdesign at 640×100
0.18%click rate · 51% below the average banner
50.5%of all banner views
#15of 15 sizes by clicks

CTR and views: a sample of our own data, September 1 to October 31, 2026. Updated monthly.

320 px50 px 320×50 banner ad example: several products with prices from a Shopify store (Navy Sports Jacket)
Real size · click the ad to open itJump to the specification ↓
All 15 sizes, drawn to scalepick another size ↓
Strips320x48300x50320x50468x60728x90320x100
Rectangles180x150200x200250x250300x250250x300480x320
Tall320x480160x600300x600

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
50.5% in our network
Click rate
0.18% - 51% below the average banner

How the 320×50 performs in our network

What we see on Adeagle
320×50 against the average banner
320×50 mobile leaderboard0.18%
Average banner0.37%
300×250 medium rectangle0.46%
300×50 mobile banner0.35%
Click rate = counted clicks ÷ banner impressions, September 1 to October 31, 2026; 1,710,301 impressions of Shopify product ads in all sizes. 320×50 ranks 15 of 15 sizes by click rate and carried 50.5% of the impressions.

When to use the 320×50

✓ Good forThe most available size on phones - a large share of all mobile ad space.
! Watch outA thin strip people scroll past on every page - its click rate is among the lowest of all sizes.

Design tips for 320×50 ads

  1. Six tiles of 45×29 pixels: one object per photo, plain background.
  2. If you can, run 320×100 next to it - twice the height, with room for the price.
  3. Keep the file under 150 KB and export it at exactly 320×50; design at 640×100 so it stays sharp on phones.
  4. Show a price - it answers the first question before the click.

Sizes to run with the 320×50

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

300×2500.46% click rate · desktop and phone300×500.35% click rate · phones and apps480×3201.01% click rate · phones and apps200×2000.80% click rate · desktop and phone

Or see all 15 standard ad sizes on one page. 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 (September 1 to October 31, 2026); Google Ads image ad specifications. The example ads use the products of Adeagle's demo store.

More banners

BannersBanner ad examples

60 real banner ads in every standard size, with what each kind gets clicked - click one to land on the product.

Free toolCTR calculator

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

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 0.18% click rate - 51% below the average banner (0.37%) - and was 50.5% of all banner impressions.