All YouTube sizes

Placement	Ratio	Max weight	Formats	Video	Text limits	Confidence
1. Video Ad - Horizontal (16:9) Video	16:9	256 GB	—	MP4MOVMPEG-4+12 No hard max	—	High confidence — confirmed in the official documentation
Notes & best practice Master spec for all YouTube and Google Ads video creatives. Recommended horizontal resolution is 1920x1080 (1080p), with a minimum of 1280x720 (SD 640x480 is accepted but not recommended). The same asset can serve skippable in-stream, non-skippable in-stream, and bumper placements. Upload as a YouTube video. Full specification Size (px) Ratio 16:9 Max weight 256 GB Formats · Video MP4, MOV, MPEG-4, MPEG-2, MPEG-1, MPEGPS, AVI, WMV, FLV, WebM, 3GPP, ProRes, DNxHR, CineForm, HEVC (H.265) Max duration No hard max (varies by format; skippable in-stream recommended under 3 min) Max video 256 GB Varies by format; see in-feed/masthead rows High confidence — confirmed in the official documentation Source: support.google.com (opens in a new tab)
2. Video Ad - Vertical (9:16) Vertical / Portrait	9:16	256 GB	—	MP4MOVMPEG-4+4 No hard max	—	High confidence — confirmed in the official documentation
Notes & best practice Recommended vertical resolution is 1080x1920 (1080p), with a minimum of 720x1280 (SD 480x640 is accepted but not recommended). Used for vertical, full-screen, and Shorts-eligible placements. Providing a vertical asset is recommended for mobile and Shorts inventory. Keep key content and text inside the safe zone — the platform UI overlaps the top and bottom of full-screen 9:16 creatives. Full specification Size (px) Ratio 9:16 Max weight 256 GB Formats · Video MP4, MOV, MPEG-4, WebM, HEVC (H.265), ProRes, DNxHR Max duration No hard max (full-screen vertical; Shorts placements recommend under 60s) Max video 256 GB Varies by format High confidence — confirmed in the official documentation Source: support.google.com (opens in a new tab)
3. Video Ad - Vertical (4:5) Vertical / Portrait	4:5	256 GB	—	MP4MOVMPEG-4+12 5 seconds minimum in Demand Gen	—	High confidence — confirmed in the official documentation
Notes & best practice Vertical 4:5 video for Demand Gen campaigns, which serve on YouTube, Gmail and Discover. Google recommends 1080x1350 for HD, and other YouTube ad formats also accept 4:5 as an alternative vertical ratio. Demand Gen videos must be at least 5 seconds, and videos under 10 seconds can't serve in YouTube in-stream. Full specification Size (px) Ratio 4:5 Max weight 256 GB Formats · Video MP4, MOV, MPEG-4, MPEG-2, MPEG-1, MPEGPS, AVI, WMV, FLV, WebM, 3GPP, ProRes, DNxHR, CineForm, HEVC (H.265) Max duration 5 seconds minimum in Demand Gen (10-60 seconds recommended) Max video 256 GB High confidence — confirmed in the official documentation Source: support.google.com (opens in a new tab)
4. Video Ad - Square (1:1) Square	1:1	256 GB	—	MP4MOVMPEG-4+2 No hard max	—	High confidence — confirmed in the official documentation
Notes & best practice Recommended square resolution is 1080x1080 (1080p), with a minimum of 480x480. Square video improves coverage in feed and Demand Gen placements alongside horizontal and vertical assets. Full specification Size (px) Ratio 1:1 Max weight 256 GB Formats · Video MP4, MOV, MPEG-4, WebM, HEVC (H.265) Max duration No hard max (varies by format) Max video 256 GB Varies by format High confidence — confirmed in the official documentation Source: support.google.com (opens in a new tab)
5. Skippable In-Stream Ad Video	16:9	256 GB	—	MP4MOVMPEG-4+1 No maximum	—	High confidence — confirmed in the official documentation
Notes & best practice Plays before, during, or after other videos. Viewers can skip after 5 seconds. Supports CPV and CPM bidding. Accepts 16:9, 9:16, or 1:1 aspect ratios. Upload as a YouTube video URL. Appears on YouTube and Google video partners. Full specification Size (px) Ratio 16:9 Max weight 256 GB Formats · Video MP4, MOV, MPEG-4, WebM Max duration No maximum (under 3 minutes recommended) Max video 256 GB Optional companion/CTA text pulled from ad setup High confidence — confirmed in the official documentation Source: support.google.com (opens in a new tab)
6. Non-Skippable In-Stream Ad Video	16:9	256 GB	—	MP4MOVMPEG-4+1 Up to 30 seconds	—	High confidence — confirmed in the official documentation
Notes & best practice Plays before, during, or after other videos and cannot be skipped. Uses target CPM bidding. Accepts 16:9, 9:16, or 1:1 aspect ratios. Duration is up to 30 seconds in auction campaigns (7-15 seconds standard; 16-30 seconds on connected TV, horizontal only) and up to 60 seconds in reservation campaigns. Full specification Size (px) Ratio 16:9 Max weight 256 GB Formats · Video MP4, MOV, MPEG-4, WebM Max duration Up to 30 seconds (auction); up to 60 seconds (reservation) Max video 256 GB Optional companion/CTA text pulled from ad setup High confidence — confirmed in the official documentation Source: support.google.com (opens in a new tab)
7. Bumper Ad Video	16:9	256 GB	—	MP4MOVMPEG-4+1 6 seconds or shorter	—	High confidence — confirmed in the official documentation
Notes & best practice Short, non-skippable 6-second video. Uses target CPM bidding. Best for broad reach. Accepts 16:9, 9:16, or 1:1 aspect ratios. Full specification Size (px) Ratio 16:9 Max weight 256 GB Formats · Video MP4, MOV, MPEG-4, WebM Max duration 6 seconds or shorter Max video 256 GB Optional companion/CTA text pulled from ad setup High confidence — confirmed in the official documentation Source: support.google.com (opens in a new tab)
8. Companion Banner (desktop) Display banner	5:1	150 KB	JPGPNGGIF	—	—	High confidence — confirmed in the official documentation
Notes & best practice Image shown next to skippable in-stream, non-skippable in-stream and bumper ads on the YouTube watch page, on desktop only. Upload a 300x60 JPG, PNG or GIF up to 150 KB (GIFs under 5 frames per second), or let Google Ads build one from your channel banner, which Google recommends. Performance Max campaigns can't use a custom image. Full specification Size (px) Ratio 5:1 Max weight 150 KB Formats JPG, PNG, GIF High confidence — confirmed in the official documentation Source: support.google.com (opens in a new tab)
9. In-Feed Video Ad Video	16:9	256 GB	—	MP4MOVMPEG-4+1 No maximum	2	High confidence — confirmed in the official documentation
Notes & best practice Appears in YouTube search results, Watch Next, Home, and Subscription feeds as a thumbnail and text. Choose from four auto-generated thumbnails or upload a custom one. Charged on click or 10-second autoplay view. Descriptions do not display on desktop watch pages or TV. Google's spec tables cap headlines at 2 lines of 40 characters, while the asset list on the in-feed ads page allows 100 characters (text over 25 may be shortened on some devices). Full specification Size (px) Ratio 16:9 Max weight 256 GB Formats · Video MP4, MOV, MPEG-4, WebM Max duration No maximum (any length YouTube video) Max video 256 GB Text limits Headline40charsper line, 2 lines Description35chars High confidence — confirmed in the official documentation Source: support.google.com (opens in a new tab)
10. Custom Video Thumbnail (16:9) Landscape	16:9	50 MB desktop upload2 MB mobile upload	JPGPNG	—	—	High confidence — confirmed in the official documentation
Notes & best practice Custom thumbnail for a YouTube video, uploaded in YouTube Studio by verified channels; in-feed video ads show it, and Google TV Masthead uses it as the background image. YouTube recommends 3840x2160 with a minimum width of 640 px, as JPG or PNG up to 50 MB from a computer or 2 MB from a phone. Google Ads' video spec pages still list YouTube's older spec of 1280x720 under 2 MB. Shorts thumbnails use 9:16 at 2160x3840. Full specification Size (px) Ratio 16:9 Max weight 50 MB (desktop upload); 2 MB (mobile upload) Formats JPG, PNG High confidence — confirmed in the official documentation Source: support.google.com (opens in a new tab)
11. YouTube Shorts Ad Vertical / Portrait	9:16	256 GB	—	MP4MOVMPEG-4+1 Under 60 seconds recommended		High confidence — confirmed in the official documentation
Notes & best practice Vertical full-screen video served between Shorts. Viewers skip by swiping. Use a 9:16 aspect ratio at 1080x1920 px. Serves across mobile, tablet, desktop, and connected TV. Best delivered via Demand Gen or Video reach campaigns. Keep key content and text inside the safe zone — the platform UI overlaps the top and bottom of full-screen 9:16 creatives. Full specification Size (px) Ratio 9:16 Max weight 256 GB Formats · Video MP4, MOV, MPEG-4, WebM Max duration Under 60 seconds recommended Max video 256 GB Text limits Long headline / description and CTA per Demand Gen/Video setup High confidence — confirmed in the official documentation Source: support.google.com (opens in a new tab)
12. YouTube Masthead (Home Feed) Display banner	16:9	256 GB	JPGPNG	MP4MOVMPEG-4 No maximum		High confidence — confirmed in the official documentation
Notes & best practice Premium reservation-only placement at the top of the YouTube Home feed across desktop, mobile, and TV. A 16:9 video at 1920x1080 or higher is recommended; on desktop it autoplays for up to 30 seconds. Two unique YouTube video IDs are required to enable companion videos (playlist URLs are not supported). Renders responsively per device. Mobile product feeds use square 1:1 images, though ratios from 0.6 to 1.4 are supported. Channel art and icons are pulled automatically. Priced via CPM or cost-per-hour. Full specification Size (px) Ratio 16:9 Max weight 256 GB Cover / thumbnail formats JPG, PNG Formats · Video MP4, MOV, MPEG-4 Max duration No maximum (over 10 seconds recommended; autoplays up to 30 seconds on desktop) Max video 256 GB Text limits Headline, description, and CTA button text vary by device; use the YouTube Masthead Preview Tool for length recommendations. High confidence — confirmed in the official documentation Source: support.google.com (opens in a new tab)
13. Google TV Masthead (Home Screen) Display banner	16:9	—	PNGJPG	Not capped in focus mode	2	High confidence — confirmed in the official documentation
Notes & best practice Reserved placement in the first slot of the Featured carousel on the Google TV home screen, bought on CPM or cost-per-hour through Google Ads instant reserve, Display & Video 360 or a Google sales rep. It needs a YouTube-hosted 16:9 video of at least 1920x1080 and a 1920x1080 background image, which is the video's custom thumbnail from YouTube Studio (PNG or 72 dpi). Muted inline playback stops at 30 seconds; playback in focus mode isn't capped. Put the image's subject in the upper right so the headline and description don't cover it. Full specification Size (px) Ratio 16:9 Max weight Not officially published Formats PNG, JPG Max duration Not capped in focus mode (muted inline playback stops at 30 seconds) Text limits Headline50charsmax Description130charsmax Description100charsrecommended Headline 50 chars max; Description 130 chars max (100 recommended) High confidence — confirmed in the official documentation Source: support.google.com (opens in a new tab)
14. Channel Banner / Channel Art Cover / Header	16:9	6 MB	JPGPNGGIF+1	—	—	High confidence — confirmed in the official documentation
Notes & best practice Recommended upload is 2560x1440 px (best for TV). Minimum is 2048x1152 px at 16:9. Safe area for text and logos is 1235x338 px centered. Max file size is 6 MB. Avoid shadows, borders, and frames. The banner is also used for branding within Masthead ads. Full specification Size (px) Ratio 16:9 Max weight 6 MB Formats JPG, PNG, GIF, BMP High confidence — confirmed in the official documentation Source: support.google.com (opens in a new tab)
15. Channel Profile Picture / Icon Profile picture	1:1	15 MB	JPGPNGGIF+1	—	—	Medium confidence — verified against reputable sources
Notes & best practice Renders at 98x98 px. Upload an 800x800 px square for crispness, as it displays in a circular crop. Max file size is 15 MB. Accepted formats are JPG, PNG, static GIF, and BMP. Animated GIFs are not permitted. Appears across the channel, videos, attributed actions, and Masthead branding. Full specification Size (px) Ratio 1:1 Max weight 15 MB Formats JPG, PNG, GIF, BMP Medium confidence — verified against reputable sources Source: support.google.com (opens in a new tab)

High confidence — confirmed in the official documentation Medium confidence — verified against reputable sources Lower confidence — changes frequently, verify before launch shortened, full wording in the row details

Minimum creative kit

Layouts: 6 · placements covered: 14 of 15

Layout	Max weight	Formats	Covers
16:9Video	256 GB	MP4MOVMPEG	Video Ad - Horizontal (16:9)Skippable In-Stream Ad Non-Skippable In-Stream Ad Bumper Ad In-Feed Video Ad YouTube Masthead (Home Feed)
16:9Image	6 MBfor 2560×1440 px	JPGPNG	Custom Video Thumbnail (16:9)Google TV Masthead (Home Screen)Channel Banner / Channel Art
9:16Video	256 GB	MP4MOVMPEGWEBM	Video Ad - Vertical (9:16)YouTube Shorts Ad
5:1Image	150 KB	JPGPNGGIF	Companion Banner (desktop)
4:5Video	256 GB	MP4MOVMPEGAVIWEBMHEVC	Video Ad - Vertical (4:5)
1:1Video	256 GB	MP4MOVMPEGWEBMHEVC	Video Ad - Square (1:1)

Not in the kit (avatars and formats without a pixel size): Channel Profile Picture / Icon

Text limits

Placements with limits: 2 of 15 · characters unless noted

Placement	Headline	Description
In-Feed Video Ad	40per line, 2 lines	35
YouTube Shorts Ad	Long headline / description and CTA per Demand Gen/Video setup
YouTube Masthead (Home Feed)	Headline, description, and CTA button text vary by device; use the YouTube Masthead Preview Tool for length recommendations.
Google TV Masthead (Home Screen)	50max	130max100recommended

Video specs

Placements: 11 of 15

Placement	Size (px)	Formats	Max duration	Max video
Video Ad - Horizontal (16:9)	1920×1080	MP4, MOV, MPEG-4, MPEG-2, MPEG-1, MPEGPS, AVI, WMV, FLV, WebM, 3GPP, ProRes, DNxHR, CineForm, HEVC (H.265)	No hard max (varies by format; skippable in-stream recommended under 3 min)	256 GB
Video Ad - Vertical (9:16)	1080×1920	MP4, MOV, MPEG-4, WebM, HEVC (H.265), ProRes, DNxHR	No hard max (full-screen vertical; Shorts placements recommend under 60s)	256 GB
Video Ad - Vertical (4:5)	1080×1350	MP4, MOV, MPEG-4, MPEG-2, MPEG-1, MPEGPS, AVI, WMV, FLV, WebM, 3GPP, ProRes, DNxHR, CineForm, HEVC (H.265)	5 seconds minimum in Demand Gen (10-60 seconds recommended)	256 GB
Video Ad - Square (1:1)	1080×1080	MP4, MOV, MPEG-4, WebM, HEVC (H.265)	No hard max (varies by format)	256 GB
Skippable In-Stream Ad	1920×1080	MP4, MOV, MPEG-4, WebM	No maximum (under 3 minutes recommended)	256 GB
Non-Skippable In-Stream Ad	1920×1080	MP4, MOV, MPEG-4, WebM	Up to 30 seconds (auction); up to 60 seconds (reservation)	256 GB
Bumper Ad	1920×1080	MP4, MOV, MPEG-4, WebM	6 seconds or shorter	256 GB
In-Feed Video Ad	1920×1080	MP4, MOV, MPEG-4, WebM	No maximum (any length YouTube video)	256 GB
YouTube Shorts Ad	1080×1920	MP4, MOV, MPEG-4, WebM	Under 60 seconds recommended	256 GB
YouTube Masthead (Home Feed)	1920×1080	MP4, MOV, MPEG-4	No maximum (over 10 seconds recommended; autoplays up to 30 seconds on desktop)	256 GB
Google TV Masthead (Home Screen)	1920×1080	—	Not capped in focus mode (muted inline playback stops at 30 seconds)	—