Aspect ratio

• Universal Ad Package (UAP)
• Interactive Advertising Bureau (IAB)

Name	width (in pixels)	height (in pixels)	aspect ratio	source
4:3 screen			1.333
ISO 216 paper size			1.414
3:2 photo print size			1.5
Golden ratio			1.618
5:3 screen			1.666
16:9 screen			1.777
Pop-Under	720	300	2.4	IAB
Large rectangle	336	280	1.2	IAB
Medium rectangle	300	250	1.2	IAB/UAP
3:1 Rectangle	300	100	3	IAB
Square pop-up	250	250	1	IAB
Vertical rectangle	240	400	1.67	IAB
Rectangle	180	150	1.2	IAB/UAP
Leaderboard	728	90	8.09	IAB/UAP
Full banner	468	60	7.8	IAB
Half banner	234	60	3.9	IAB
Button 1	120	90	1.33	IAB
Button 2	120	60	2	IAB
Micro bar	88	31	2.84	IAB
Micro button	80	15	5.33
Vertical banner	120	240	2	IAB
Square button	125	125	1	IAB
Skyscraper	120	600	5	IAB
Wide skyscraper	160	600	3.75	IAB/UAP
Half-page	300	600	2	IAB
Google Mobile Image	300	50	6	Google

Google

• https://www.google.com/adsense/static/en_US/AdFormats_mobile.html
  • https://www.google.com/adsense/static/en_US/images/mobile300-50.gif

Relation to other standards

Closest to

• golden ratio 1.61 : Vertical rectangle (1.67)
• ISO paper size 1.41 : Button 1 (1.33)
• standard photographic print size 1.5 : Vertical rectangle (1.67)