YouTube Ad Sizes & Specs Guide 2026
YouTube is the second-largest search engine in the world and offers a variety of ad formats from short bumper ads to full-length video campaigns. Whether you are running skippable pre-roll ads, non-skippable bumpers, or display ads alongside videos, using the correct specifications is essential for ad approval and performance. This guide covers all YouTube ad formats and their exact specs for 2026.
All YouTube Ad Formats & Sizes
| Ad Type | Dimensions | Aspect Ratio | File Types | Max Size | Notes |
|---|---|---|---|---|---|
| Bumper Ad (6 seconds) | 1920 x 1080 px | 16:9 | MP4, MOV, AVI | 1 GB | Non-skippable 6-second video ad. Plays before, during, or after videos. H.264 codec recommended. |
| Skippable In-Stream Ad (Pre-Roll) | 1920 x 1080 px | 16:9 | MP4, MOV, AVI | 1 GB | Skippable after 5 seconds. No maximum duration but 15-30 seconds recommended. Can appear before, during, or after videos. |
| Non-Skippable In-Stream Ad | 1920 x 1080 px | 16:9 | MP4, MOV, AVI | 1 GB | Must be 15 seconds or shorter. Plays in full before viewers can watch their video. |
| In-Feed Video Ad (Discovery) | 1920 x 1080 px (video) + 300 x 60 px (thumbnail override) | 16:9 | MP4, MOV | 1 GB | Appears in YouTube search results and alongside related videos. Thumbnail is auto-generated or custom. |
| YouTube Shorts Ad | 1080 x 1920 px | 9:16 | MP4, MOV | 1 GB | Vertical video up to 60 seconds. Appears between Shorts in the Shorts feed. |
| Display Ad (Medium Rectangle) | 300 x 250 px | 6:5 | JPG, PNG, GIF | 150 KB | Appears to the right of the video player on desktop. Static or animated. |
| Display Ad (Leaderboard) | 728 x 90 px | 8.1:1 | JPG, PNG, GIF | 150 KB | Appears above the video suggestions list on desktop. |
| Display Ad (Skyscraper) | 300 x 600 px | 1:2 | JPG, PNG, GIF | 150 KB | Large vertical display ad on desktop. Also known as half-page ad. |
| Masthead Ad | 1920 x 1080 px (video) or custom (banner) | 16:9 | MP4, MOV, JPG, PNG | 1 GB (video) | Premium placement at the top of the YouTube homepage. Available via reservation only. |
Format Details
Bumper Ad (6 seconds)
Non-skippable 6-second video ad. Plays before, during, or after videos. H.264 codec recommended.
Skippable In-Stream Ad (Pre-Roll)
Skippable after 5 seconds. No maximum duration but 15-30 seconds recommended. Can appear before, during, or after videos.
Non-Skippable In-Stream Ad
Must be 15 seconds or shorter. Plays in full before viewers can watch their video.
In-Feed Video Ad (Discovery)
Appears in YouTube search results and alongside related videos. Thumbnail is auto-generated or custom.
YouTube Shorts Ad
Vertical video up to 60 seconds. Appears between Shorts in the Shorts feed.
Display Ad (Medium Rectangle)
Appears to the right of the video player on desktop. Static or animated.
Display Ad (Leaderboard)
Appears above the video suggestions list on desktop.
Display Ad (Skyscraper)
Large vertical display ad on desktop. Also known as half-page ad.
Masthead Ad
Premium placement at the top of the YouTube homepage. Available via reservation only.
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