In short
- Three sizes cover most slots: 300×250 (desktop and phone), 320×50 or 320×100 (phones) and 728×90 (desktop).
- The most common size is not the best one. 320×50 was 45.2% of all impressions in our network but had the lowest click rate, 0.33%. 320×100, twice as tall, got 1.91%.
- Show several products, with prices. Ads with several products and prices got 0.78% - two thirds more than one product without a price (0.47%).
- Keep each image under 150 KB - the Google Ads limit for uploaded image ads, and a safe limit everywhere else.
All 15 standard banner sizes
Every size the Adeagle ad network serves, most common first. "Share" is the size's part of all banner impressions in our network; the click rate counts real clicks only - suspicious clicks are removed.
| Size | Name | Screens | Share | Click rate |
|---|---|---|---|---|
| 320×50 | Mobile leaderboard | Phones and apps | 45.2% | 0.33% |
| 300×250 | Medium rectangle | Desktop and phone | 18.7% | 0.60% |
| 300×50 | Mobile banner | Phones and apps | 10.1% | 0.51% |
| 728×90 | Leaderboard | Desktop | 6.7% | 0.56% |
| 480×320 | Mobile interstitial (landscape) | Phones and apps | 6.2% | 1.02% |
| 468×60 | Full banner | Desktop | 3.5% | 0.57% |
| 200×200 | Small square | Desktop and phone | 3.5% | 0.50% |
| 250×250 | Square | Desktop and phone | 1.4% | 1.81% |
| 320×100 | Large mobile banner | Phones and apps | 1.1% | 1.91% |
| 300×600 | Half page | Desktop | 0.9% | 1.36% |
| 320×48 | Small mobile banner | Phones and apps | 0.8% | 1.24% |
| 250×300 | Vertical rectangle | Desktop and phone | 0.7% | 2.74% |
| 180×150 | Small rectangle | Desktop | 0.5% | 2.04% |
| 320×480 | Mobile interstitial (portrait) | Phones and apps | 0.4% | 2.01% |
| 160×600 | Wide skyscraper | Desktop | 0.3% | 2.10% |
Adeagle network, August 1 to September 26, 2026: 2,201,475 banner impressions of Shopify product ads on websites and apps. Across all our ad formats - ad blocks inside partner stores included - the click rate is 0.29%; banners alone averaged 0.56%.
Which banner sizes get the most clicks
The most common sizes get the fewest clicks per view. The four sizes that carry most of the impressions - 320×50, 300×250, 300×50 and 728×90 - all sit between 0.33% and 0.60%. Where you can choose between two sizes for the same spot, the bigger one won clearly: 320×100 got 1.91% against 0.33% for 320×50 on phones, and 300×600 got 1.36% against 0.56% for 728×90 on desktop.
Prices and several products: what gets clicked
Every Adeagle ad comes in four versions. Across all sizes, this is how they compared:
Which ad sizes to start with
- 300×250 - the medium rectangle. Runs on desktop and phones, inside articles and in app feeds. If you make one size, make this one.
- 320×100 - the large mobile banner. The phone size with room for a product and a price; in our data it got several times the clicks of 320×50.
- 728×90 - the leaderboard. The desktop strip above the content; eight products fit in a row.
- 300×600 - the half page. The largest standard size on desktop and one of the best for clicks.
Add 320×50 for reach on phones and 160×600 for sidebars. The rest - 468×60, 250×250, 200×200, 180×150, 300×50, 320×48 and the full-screen 320×480 and 480×320 - fill the slots the main sizes miss.
Specs for banner image ads
| Rule | Limit |
|---|---|
| File size | 150 KB or less per image (Google Ads uploaded image ads) |
| Formats | JPG or PNG for photos, GIF for simple animation |
| Animation | stops after 30 seconds; slower than 5 frames per second |
| Exact size | the image must match the slot to the pixel - 300×250 means 300 by 250 |
| Sharp screens | design at 2× (600×500 for 300×250) and export at the slot size, or let the network scale it |
Design rules that hold in every size: one clear product per photo, little or no text inside the image, the price in plain view, a visible button or store name, and a border or background so the ad doesn't melt into a white page. The examples on each size's page show how this looks at 1×.
Every size, made for you
Designing 15 sizes by hand - and again for every new product - is why many small stores never run display ads. Adeagle draws every size automatically from your product photos, names and prices, picks the products each shopper is most likely to want, and shows them on websites and in apps that match your products. The examples on these pages are exactly that: real Adeagle ads, made from the products of our demo store. Click one and you land on the product, the way a shopper would.
Sources: Adeagle network data (August 1 to September 26, 2026); Google Ads, image ad specifications (sizes, 150 KB, animation rules) and Google AdSense, guide to ad sizes (size names).