8:1 aspect ratio
8.0000:1 · 1456×182 px · also called 728x90, leaderboard, banner strip
8:1 is the shape of the classic 728×90 leaderboard, still one of the highest-volume display units in Google Display and programmatic inventory.
What 8:1 means
An 8:1 frame is 8 times wider than it is tall — divide the width by 8 for the height. 728×90 is 8.09:1 in practice, which is why creative built at exactly 8:1 needs a 2 px nudge to fit the slot.
Where it is used
Google Display leaderboard (728×90) and large leaderboard (970×90), programmatic banner inventory, and in-article strips.
8:1 in pixels
Every row below is exactly 8:1. Divide the width by 8.0000 to get the height for any size not listed.
| Width (px) | Height (px) | Total pixels |
|---|---|---|
| 728 | 91 | 0.07 MP |
| 970 | 121 | 0.12 MP |
| 1456 | 182 | 0.26 MP |
| 1940 | 243 | 0.47 MP |
8:1 in mm and inches
Physical equivalents at common print widths, with the pixel size needed for 300 DPI print.
| Width (mm) | Height (mm) | Inches | Pixels @ 300 DPI |
|---|---|---|---|
| 50 | 6.3 | 1.97″ × 0.25″ | 591×74 |
| 100 | 12.5 | 3.94″ × 0.49″ | 1181×148 |
| 150 | 18.8 | 5.91″ × 0.74″ | 1772×222 |
| 210 | 26.3 | 8.27″ × 1.04″ | 2480×311 |
| 297 | 37.1 | 11.69″ × 1.46″ | 3508×438 |
Ad placements that use 8:1
Working with 8:1
- 01Logo left, one benefit line centre, button right — that is the only layout that works at 90 px tall.
- 02Use 1456×180 (2×) artwork and downscale, so text stays crisp on retina.
- 03Keep total weight under 150 KB — most exchanges reject heavier banners.
8:1 questions, answered
What is 8:1 in pixels?
728×90 px (the leaderboard) is the canonical size; 970×120 px is close to the same shape.
Is 728×90 exactly 8:1?
Almost — it is 8.09:1. Build to the pixel size, not the ratio.
What replaces leaderboards on mobile?
The 320×50 mobile banner (6.4:1) and 320×100 large mobile banner (3.2:1).
Free tools for 8:1
Never crop by hand again. Xeli reframes for you.
Xeli generates every ratio a campaign needs from one master — 8:1 included — with safe zones respected per placement.
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