Last Updated: September 12, 2026
Following the correct YouTube ad specifications helps videos display clearly across mobiles, computers, tablets and television screens. Incorrect dimensions, low resolution, excessive duration or unavailable video files can limit eligibility or cause advertisement disapproval.
Google can adjust videos to different devices, but advertisers should supply high-quality horizontal, vertical and square assets rather than expecting one file to suit every placement.
Table of Contents
YouTube Ad Specifications Guide
The following requirements apply broadly across YouTube advertising formats:
| Specification | Recommended setting | Other accepted options |
| Horizontal resolution | 1920 × 1080 pixels | Minimum HD: 1280 × 720 |
| Vertical resolution | 1080 × 1920 pixels | Minimum HD: 720 × 1280 |
| Square resolution | 1080 × 1080 pixels | Minimum: 480 × 480 |
| Horizontal ratio | 16:9 | 4:3 accepted |
| Vertical ratio | 9:16 | 2:3 and 4:5 accepted |
| Square ratio | 1:1 | — |
| Preferred quality | 1080p Full HD | 720p HD accepted |
| Recommended format | MPEG-2 or MPEG-4 | MP4, MOV, AVI, WebM and others |
| Maximum file size | 256 GB | — |
| Audio-only files | Not accepted as YouTube videos | — |
Google accepts standard-definition video, but does not recommend it for optimal advertising quality.
YouTube Ad Length Specifications
| YouTube ad format | Duration requirement or recommendation |
| Skippable in-stream | No fixed maximum; under three minutes recommended |
| Non-skippable in-stream | Up to 30 seconds in auction campaigns |
| Reserved non-skippable | Up to 60 seconds |
| Bumper | Between five and six seconds |
| In-feed video | No fixed maximum |
| YouTube Shorts | Under 60 seconds recommended |
| Masthead | No fixed maximum; over 10 seconds recommended |
Availability and permitted duration can vary by campaign subtype. Check the warning and eligibility information displayed while creating the advertisement.
Horizontal, Vertical and Square Video
Horizontal: 16:9
Horizontal video at 1920 × 1080 is suitable for traditional YouTube viewing, desktop screens and connected television placements.
Vertical: 9:16
Vertical video at 1080 × 1920 is designed for mobile-first placements such as YouTube Shorts. Avoid placing important text or logos close to the edges because interface controls may cover them.
Square: 1:1
Square creative at 1080 × 1080 offers a flexible mobile format but does not fill the entire vertical Shorts screen.
Creating several aspect ratios allows Google Ads to select more appropriate creative across eligible inventory.
YouTube Thumbnail Specifications
In-feed advertisements rely heavily on the video thumbnail because users actively choose whether to watch.
| Thumbnail requirement | Specification |
| Recommended dimensions | 1280 × 720 pixels |
| Recommended ratio | 16:9 |
| Accepted formats | JPG, GIF or PNG |
| Maximum size for videos | Under 2 MB |
| Minimum accepted dimensions | 1280 × 640 pixels |
Use a clear image that accurately represents the video. Avoid misleading thumbnails or text that is unreadable on mobile screens.
Companion Banner Specifications
Companion banners can appear beside video advertisements on desktop devices.
| Specification | Requirement |
| Dimensions | 300 × 60 pixels |
| File formats | JPEG, GIF or PNG |
| Maximum file size | 150 KB |
| Device availability | Desktop only |
The companion banner supports the primary video advertisement; it should not contain a different offer or conflicting call to action.
Best YouTube Ad Specifications
For most campaigns, a practical production set contains:
- 1920 × 1080 horizontal video
- 1080 × 1920 vertical video
- 1080 × 1080 square video
- 1280 × 720 thumbnail
- 300 × 60 companion banner
- Clear audio and captions
- Brand name or logo
- Important elements inside safe zones
Use the highest-quality original footage available. Repeatedly resizing a low-resolution export does not create genuine detail and can make text and products appear unclear.
YouTube Ad Specifications for Beginners
Use this preparation workflow:
- Select the intended advertising format.
- Confirm its maximum or recommended duration.
- Produce the master video at 1080p.
- Create horizontal, vertical and square versions.
- Keep logos, products and text within safe zones.
- Add captions where dialogue is important.
- Export in a supported video format.
- Upload the video to YouTube.
- Prepare the thumbnail and companion banner.
- Preview every eligible placement in Google Ads.
Watch the finished video on a mobile phone without sound. The message should remain understandable because many viewers may not immediately hear the audio.
Video Safe Zones
YouTube can place call-to-action buttons, headlines and interface controls over different parts of a video. Important elements positioned near an edge may therefore become obscured.
Keep the following towards the central safe area:
- Brand logo
- Product name
- Prices or discount information
- Disclaimer text
- Subtitles
- Call-to-action text
- Important faces or products
Google provides separate safe-zone templates for horizontal, vertical and square advertisements in its official specifications.
YouTube Ad Specifications Cost
Google does not normally charge a separate fee for meeting technical specifications. Costs arise from creating, editing and adapting the video.
| Production option | Possible cost consideration |
| In-house smartphone video | Staff time and basic editing |
| Freelancer editing | Per-video or project fee |
| Animation | Complexity, length and revisions |
| Professional production | Crew, equipment, actors and locations |
| Multiple aspect ratios | Additional editing and quality checks |
| Captions and translations | Language and duration |
| Music licensing | Usage rights and campaign duration |
Producing several aspect ratios can increase the initial creative cost, but it may provide better control across placements.
YouTube Ad Specifications Examples
A skippable product demonstration could use a 30-second horizontal master video, with separate vertical and square edits. The brand and central benefit should appear within the first five seconds.
A bumper campaign requires a message that fits within five to six seconds. For example, it might show the product, one benefit and the brand name rather than explaining several features.
A Shorts advertisement could use a 20-second vertical video at 1080 × 1920. Captions and product visuals should remain away from the edges where platform controls appear.
Common Specification Mistakes
- Uploading low-resolution video
- Using a horizontal crop for Shorts without reframing
- Exceeding the permitted duration
- Placing text outside safe zones
- Using an audio file instead of a video
- Uploading an unavailable or inaccessible video
- Using copyrighted music without permission
- Omitting the advertiser’s identity
- Making disclaimers too small to read
- Sending viewers to an unrelated landing page
Google requires advertisements to identify the business, product or service clearly. Videos must also satisfy its advertising, quality and copyright policies.
YouTube Ad Specifications Tips
- Export at 1080p where possible
- Create native vertical creative for Shorts
- Use large, high-contrast captions
- Check text on a small mobile display
- Keep the opening visually clear
- Avoid excessive on-screen information
- Use licensed music and footage
- Preview every format before launch
- Save editable master files
- Recheck Google’s specifications before major campaigns
Performance Expectations and Limitations
Meeting every technical specification makes a video eligible for appropriate placements, but it does not guarantee approval, delivery or conversions.
Performance still depends on the offer, audience, campaign objective, bidding and creative message. High production quality can improve credibility, but a simple relevant video may outperform an expensive advertisement with a weak opening.
Frequently Asked Questions
What are the recommended YouTube ad specifications?
Google recommends 1080p video using 1920 × 1080 horizontal, 1080 × 1920 vertical or 1080 × 1080 square dimensions.
What is the maximum YouTube video-ad file size?
Google’s current video-ad specifications accept files of up to 256 GB.
Can I use the same video for YouTube Shorts and in-stream ads?
Yes, but separate vertical and horizontal edits generally provide better control over composition, text and safe zones.
How long can a non-skippable YouTube advertisement be?
Google’s policy permits up to 30 seconds in auction campaigns and up to 60 seconds in reservation campaigns. Eligibility can depend on the campaign subtype.
Conclusion
Correct YouTube ad specifications begin with 1080p production, placement-appropriate aspect ratios, supported files and format-specific durations. Create separate horizontal, vertical and square versions, protect important elements with safe zones and preview every advertisement before launch.
