The banner size lab

A feel for the format.

Select any banner for your preview. See its shape, understand its use, then explore the full guide.

01 Choose a platform → 02 Pick a format → 03 Explore
Banner Ad Sizes

Find your canvas.

23 formats

Fixed display banners for compatible website and app placements.

Try a custom canvas
×

Custom dimensions illustrate proportions; they do not establish platform support.

Display placement preview
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Proportional preview

Medium rectangle

300 × 250 px

A versatile rectangle for desktop sidebars, between article sections and suitable mobile content placements. Its balanced shape gives a product image, short headline and action room to work together.

Safe area

Keep important content clear of the edges and review the actual placement crop. This dashed inset is an editorial layout guide, not a platform-mandated safe area.

Read full blog ↗Listed display format
Source & guidance

Insets show composition guidance, not an approval or guaranteed crop. Confirm current requirements in the selected platform.

Google Ads display specifications ↗

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