1:2 aspect ratio
0.5000:1 · 600×1200 px · also called half-page adjacent, 0.5:1, skyscraper
1:2 is the half-page display shape: 300×600 px. It is the highest-viewability standard display unit because it stays on screen while the page scrolls.
What 1:2 means
A 1:2 frame is half as wide as it is tall — double the width to get the height. Exact sizes: 300×600, 600×1200.
Where it is used
Google Display half-page (300×600), sidebar and skyscraper inventory, and in-app vertical banners.
1:2 in pixels
Every row below is exactly 1:2. Divide the width by 0.5000 to get the height for any size not listed.
| Width (px) | Height (px) | Total pixels |
|---|---|---|
| 300 | 600 | 0.18 MP |
| 400 | 800 | 0.32 MP |
| 600 | 1200 | 0.72 MP |
| 800 | 1600 | 1.28 MP |
1:2 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 | 100 | 1.97″ × 3.94″ | 591×1181 |
| 100 | 200 | 3.94″ × 7.87″ | 1181×2362 |
| 150 | 300 | 5.91″ × 11.81″ | 1772×3543 |
| 210 | 420 | 8.27″ × 16.54″ | 2480×4961 |
| 297 | 594 | 11.69″ × 23.39″ | 3508×7016 |
Ad placements that use 1:2
Working with 1:2
- 01Stack the message: logo top, product middle, CTA bottom — sidebar units are read top to bottom.
- 02Build at 600×1200 and downscale for retina sharpness.
- 03Reuse the middle 300×300 square as the medium-rectangle variant.
1:2 questions, answered
What is 1:2 in pixels?
300×600 px is the standard half-page unit; 600×1200 px is the 2× master.
Is 1:2 the same as 9:16?
No. 9:16 is 0.5625:1, slightly wider than 1:2.
Why does the half-page perform well?
Its height keeps it in view during scroll, which lifts viewability and CTR versus square units.
Free tools for 1:2
Never crop by hand again. Xeli reframes for you.
Xeli generates every ratio a campaign needs from one master — 1:2 included — with safe zones respected per placement.
Get early access