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YouTube Ad Specs, Size, and Placement Guide

What are the specs for a YouTube video? What are YouTube ad formats? This section will answer these questions to help you maximize efficiency and impact.

When it comes to YouTube ad specs, there are three distinct placements across the platform: Skippable Video Ads,
Non-Skippable In-Stream Video Ads, Bumper Ads.

Boost Your YouTube Ads with Full Moon

With ideal YouTube video ad sizes and specs in hand, it’s time to light up those campaigns.

Amplify your YouTube Ads paid efforts with Full Moon’s Video Ad experts.

From awareness campaigns to customer acquisition, high performance YouTube Ads is within reach.

Skippable Video Ads

YouTube’s Skippable video ads play before, during, or after videos on YouTube. Viewers have the option to skip the ad after 5 seconds, so you must frontload an attention-grabbing hook in your creative to keep viewers engaged and discourage skipping.

  • Aspect ratio: 16:9, 1:1, or 4:3. We recommend 16:9 as more and more viewers are consuming YouTube on their CTVs. 
  • Video length: Skippable video ads do not have a minimum or maximum length, but YouTube states video ads 3 minutes or less perform best. 
  • File type: .MPG (MPEG-2 or MPEG-4) is recommended, but many other formats are accepted

The headline accompanying a Skippable video ad must be 15 characters or fewer without a CTA, or 10 characters or fewer with a CTA. 

Non-Skippable In-Stream Video Ads

These ads cannot be skipped and must be watched before a video starts or continues. Unlike skippable ads, you have the opportunity to tell your story and take your viewer through a longer narrative.

  • Aspect ratio: 16:9, 1:1, or 4:3. We recommend 16:9 as more and more viewers are consuming YouTube on their CTVs. 
  • Video length: 15 or 20 seconds in length, depending on regional standards.
  • File type: .MPG (MPEG-2 or MPEG-4) is recommended, but many other formats are accepted

Non-Skippable In-Stream Video Ads

YouTube Bumper ads, also called pre-roll ads, are non-skippable short messages delivered before, during, or after a video plays. Bumper ads are shown on desktops, mobile devices, TV, and game consoles.

  • Aspect ratio: 16:9, 1:1, or 4:3. We recommend 16:9 as more and more viewers are consuming YouTube on their CTVs. 
  • Max length: 6 seconds or fewer 
  • File type: .MPG (MPEG-2 or MPEG-4) is recommended, but many other formats are accepted 

Conquer YouTube Ads by Understanding Ad Specs

More and more people (239 million US viewers in 2024) are watching YouTube content. By aligning creative elements effectively, brands can develop compelling video ads that drive meaningful results and meet performance goals.

Reach out to us, and we’ll assist you in activating and managing your campaign for YouTube advertising.

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