At a glance
- A Short is a square or vertical video up to 3 minutes. A wider frame such as 16:9 stays a regular video.
- YouTube’s Shorts pages say “vertical” and “maximum 1080p” and publish no pixel table. 1080×1920 (9:16) is the standard vertical frame, and Google documents it for Shorts ads.
- No official safe zone exists for regular Shorts. Google’s Shorts ad rule is to keep key items out of the top 10%, bottom 25% and right 10%.
- Custom Shorts thumbnails: 9:16, 2160×3840 recommended, uploaded in YouTube Studio on a computer.
YouTube Shorts size: the specs YouTube publishes
YouTube’s own Shorts pages are short on numbers. They give a length, a shape and a resolution ceiling, and leave the pixel dimensions of a vertical frame to the standard 9:16 arithmetic.
| Spec | What YouTube says | Source |
|---|---|---|
| Aspect ratio | Square or vertical (blog wording: “square or taller”) | Help, YouTube Blog |
| Length | Up to 3 minutes (see YouTube Shorts length) | Help |
| Maximum upload resolution | 1080p | Help |
| Vertical frame at 1080p | 9:16 at 1080 wide is 1080×1920. Google lists that size for Shorts ads; no pixel size is stated for regular Shorts | Google Ads |
| Frame rate | Upload at the rate you recorded; common rates are 24, 25, 30, 48, 50 and 60 fps | Upload encoding page |
| Container and codecs | MP4, H.264 video, AAC-LC audio | Upload encoding page |
| Bitrate at 1080p (SDR) | 8 Mbps for 24-30 fps, 12 Mbps for 48-60 fps | Upload encoding page |
| Custom thumbnail | 9:16, 2160×3840 recommended, minimum 640 px high, JPG or PNG | Thumbnail help |
The three encoding rows come from YouTube’s general upload page, not a Shorts page. Treat them as good defaults, not Shorts requirements.
What aspect ratio is a YouTube Short?
The YouTube Shorts aspect ratio rule has no exact number. The Help Center asks for a square or vertical video, and the October 3, 2024 YouTube Blog post says the three-minute change applies to videos that are “square or taller in aspect ratio”.
| Ratio | Pixels at 1080 wide | Counts as a Short? |
|---|---|---|
| 9:16 (vertical) | 1080×1920 | Yes. Google calls it the recommended Shorts ad format |
| 4:5 (vertical) | 1080×1350 | YouTube does not say. It is taller than square, so the rule should cover it (our reading) |
| 1:1 (square) | 1080×1080 | Yes, square is named in the rule |
| 16:9 (horizontal) | 1920×1080 | No. YouTube says a wider ratio such as 16:9 keeps a video long-form |
A third-party test points the same way. In a post published October 6, 2025, vidIQ says a square video reached the Shorts shelf, while one only 10 pixels wider than it was tall did not. That is one test by one company, so use it as a hint, not a rule.
vidIQ notes that square Shorts play with black bars above and below. If you want a full-screen look, shoot or export at 9:16. If you plan to cross-post, the same 1080×1920 master also fits the TikTok video size and the Instagram Reel size, though each app places its own overlays.
What resolution can a YouTube Short be?
YouTube’s Shorts creation page says you can upload Shorts at a maximum resolution of 1080p. For a vertical frame that is 1080 pixels wide by 1920 tall (our arithmetic: 1080 / 9 x 16 = 1920). YouTube’s general encoding page lists bitrates up to 8K for regular videos, but the Shorts page names 1080p as the ceiling.
Two upload rules help vertical files. YouTube’s upload help says not to add black bars to the sides of a vertical video, because the player fits vertical, square and horizontal videos to the screen. On computers, YouTube may add its own padding around a 9:16 video, white by default and dark gray in Dark theme, and asks you not to bake padding into the file.
Where is the YouTube Shorts safe zone?
YouTube publishes no safe-zone diagram for regular Shorts. It does show that overlays exist: on June 25, 2026 it announced a Clear Screen mode that hides all icons and text, and it replaced the thumbs-up with a heart icon, so the layout is still changing.
The closest official numbers belong to Shorts ads. Google’s Shorts ads page tells advertisers to keep text, logos and calls to action out of the top 10%, the bottom 25% and the right-hand 10% of the frame. On a 1080×1920 frame that is 192 px at the top, 480 px at the bottom and 108 px on the right (our arithmetic), leaving about 972 x 1248 px of clear space. Google’s ad help adds that overlays and buttons move with the format, campaign type and screen, and that the player can squeeze toward a 1:1 crop when a viewer scrolls related content.
Third-party advice differs. Piktochart and PostFast both suggest the central 4:5 area, which is 1080×1350 on a 9:16 frame. Neither ties that figure to a YouTube document. Use the ad numbers as a cautious ceiling, then preview your Short in the YouTube app before you publish.
What size is a YouTube Shorts thumbnail?
YouTube’s thumbnail help recommends 2160×3840 pixels for Shorts, with a minimum height of 640 pixels, a 9:16 aspect ratio, and JPG or PNG files. On a computer the limit is 50 MB. Custom Shorts thumbnails can only be added in YouTube Studio on a computer, and the account must be verified. In the app you pick a frame from the Short instead.
The same page says vertical videos with a 16:9 custom thumbnail get an auto-generated 4:5 thumbnail on the home, explore and subscription pages. Some Shorts guides give 1280×720, which is a horizontal 16:9 size; YouTube’s current page recommends 3840×2160 for horizontal videos.
How do you export a video at YouTube Shorts size?
- Set a 9:16 canvas. In your editor, create a 1080×1920 project before you add clips.
- Reframe horizontal footage. Crop or scale the clip so the subject sits in the middle. Skip black bars and padding, which YouTube asks you not to add.
- Keep text inside the ad-style safe area. Stay about 192 px from the top, 480 px from the bottom and 108 px from the right edge.
- Export MP4 at the recorded frame rate. H.264 video and AAC audio match YouTube’s general upload advice. Stay at or under 3:00.
- Preview before you publish. Check the Short in the YouTube app, then follow the upload steps in how to make a YouTube Short.
What other guides get wrong. Several pages say Shorts must be exactly 9:16, but YouTube’s rule is square or vertical. vidIQ’s quick-reference table lists 1080p as a minimum, while YouTube’s Shorts page names it the maximum upload resolution. The same table gives 1280×720 as the Shorts thumbnail size, against YouTube’s 9:16 recommendation. A “4:5 safe area” is third-party advice, not a YouTube spec. Sources: the Help pages listed below, checked October 27, 2026.
Need a 9:16 clip to start from? Compare the AI shorts generators we cover.
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What size is a YouTube Short?
YouTube asks for a square or vertical video up to 3 minutes, with a maximum upload resolution of 1080p. The standard vertical frame is 9:16, which is 1080×1920 pixels. YouTube states the pixel size for Shorts ads, not for regular Shorts (checked October 27, 2026).
What is the aspect ratio of YouTube Shorts?
Square (1:1) or vertical. 9:16 is the standard vertical ratio. YouTube lists no exact ratio in its Shorts rule, and its blog describes eligible videos as square or taller.
Can a YouTube Short be 16:9?
No. YouTube says to use a wider aspect ratio such as 16:9 if you do not want a video classified as a Short.
Can a YouTube Short be square?
Yes. Square is named in YouTube’s rule. vidIQ reports that square Shorts play with black bars above and below.
What resolution are YouTube Shorts?
YouTube’s Shorts creation page gives a maximum upload resolution of 1080p, which is 1080×1920 for a 9:16 frame.
What is the YouTube Shorts safe zone?
YouTube publishes none for regular Shorts. For Shorts ads, Google says to keep key elements out of the top 10%, bottom 25% and right 10% of the frame. Third-party guides often suggest the central 4:5 area instead.
What size is a YouTube Shorts thumbnail?
YouTube recommends 2160×3840 pixels (9:16) for custom Shorts thumbnails, with a minimum height of 640 pixels. Custom Shorts thumbnails can only be uploaded in YouTube Studio on a computer, and the account must be verified.
Sources
- YouTube Help: Get started creating YouTube Shorts, checked October 27, 2026
- YouTube Help: Understand three-minute YouTube Shorts, checked October 27, 2026
- YouTube Help: Upload YouTube Shorts, checked October 27, 2026
- YouTube Help: Upload YouTube videos, checked October 27, 2026
- YouTube Help: Video resolution and aspect ratios, checked October 27, 2026
- YouTube Help: Recommended upload encoding settings, checked October 27, 2026
- YouTube Help: Add custom thumbnails on YouTube, checked October 27, 2026
- YouTube Blog: Tall updates coming to Shorts (October 3, 2024), checked October 27, 2026
- YouTube Blog: How we’re updating the YouTube Shorts experience (June 25, 2026), checked October 27, 2026
- Google Ads: YouTube Shorts ads, checked October 27, 2026
- Google Ads Help: Use square and vertical video to engage mobile customers, checked October 27, 2026
- Google Ads Help: Demand Gen video asset specifications, checked October 27, 2026
- vidIQ: YouTube Shorts size and dimensions (October 6, 2025), checked October 27, 2026
- Piktochart: YouTube Shorts dimensions, checked October 27, 2026
- PostFast: YouTube Shorts size, checked October 27, 2026
Method: how we research.