Skip to main content
Get Started Today

YouTube Shorts Size: Dimensions and Aspect Ratio

YouTube Shorts size: a square or vertical frame up to 3 minutes, usually exported at 1080 x 1920. What YouTube specifies, and the 2160 x 3840 thumbnail.

Written by
Published · 10 min read
YouTube Shorts Size: Dimensions and Aspect Ratio

The usual YouTube Shorts size is 1080 x 1920 pixels, a vertical 9:16 frame that fills a phone screen. That pixel figure comes from Google’s ad specs and from habit: YouTube’s creator help defines a Short only by shape and length, any square or vertical video of up to 3 minutes. For the custom Shorts thumbnail, YouTube recommends 2160 x 3840 pixels.

Key Takeaways

  • Export size: 1080 x 1920 pixels at 9:16. Google Ads Help recommends that size for vertical video ads; YouTube’s creator help gives no pixel size for Shorts.
  • What makes a Short: a square or vertical upload of up to 3 minutes. A wider frame such as 16:9 stays a long-form video.
  • Resolution: YouTube’s steps for the Shorts camera say Shorts upload at a maximum of 1080p.
  • Thumbnail: 2160 x 3840 pixels at 9:16, at least 640 pixels tall, added in YouTube Studio on a computer from a verified account.
  • Text near the edges: YouTube publishes no safe zone for regular Shorts, so check the private upload on a phone.

YouTube Shorts dimensions at a glance

Every row was read on 1 November 2026 from YouTube Help or, where marked, Google Ads Help. The last column matters, because most size guides print 1080 x 1920 as if YouTube’s creator help set it.

SpecFigureWhere it comes from
ShapeSquare or verticalYouTube Help: decides whether a video is a Short
LengthUp to 3 minutesYouTube Help: decides whether a video is a Short
Wider than tall, such as 16:9A long-form videoYouTube Help
Export size1080 x 1920 pxGoogle Ads Help, for vertical video ads
Aspect ratio for the full screen9:16Google Ads Help: “best suited for the Shorts format”
Resolution limit1080pYouTube Help, in the Shorts camera steps
Custom thumbnail2160 x 3840 px, 9:16, at least 640 px tallYouTube Help: a recommendation
Thumbnail fileJPG or PNG, up to 50 MB from a computerYouTube Help

The first three rows decide whether YouTube treats your video as a Short. The sizes below them are recommendations: a file that ignores them still uploads and plays.

What size are YouTube Shorts?

Export a Short at 1080 x 1920 pixels, a 9:16 vertical frame. That shape fills a phone held upright, and 1,080 pixels across matches the 1080p limit YouTube gives for Shorts made with its own camera. Any square or vertical video of up to 3 minutes counts as a Short, so the size decides how the Short looks, not whether it is one.

YouTube’s Shorts upload page asks for one thing about the frame: a file “with a square or vertical aspect ratio”. A 720 x 1280 clip and a 1080 x 1920 clip are both Shorts; the larger one looks sharper. The length side of the rule, including what changes past one minute, is in our guide to how long YouTube Shorts can be.

Is 1080 x 1920 YouTube’s official Shorts size?

Not on YouTube’s creator help. We read the Shorts upload, three-minute Shorts, Shorts creation, aspect-ratio, encoding and thumbnail pages in full, and none gives 1080 x 1920 for a Short. The figure is in Google Ads Help, which recommends 1080 x 1920 for vertical video ads and marks it “Recommended for YouTube Shorts” in its Demand Gen ad specs.

That makes 1080 x 1920 a sound export choice, and the one we recommend. It is not a rule YouTube enforces on your upload. YouTube’s resolution page lists recommended sizes only for the 16:9 frame, from 426 x 240 to 7680 x 4320, with no vertical list.

So a guide that calls 1080 x 1920 “required” overstates it: a 1080 x 1350 or 1080 x 1080 video under 3 minutes still uploads as a Short. And the safe-zone advice that travels with the figure comes from the same ads documentation, written for ad overlays.

What aspect ratio should a YouTube Short be?

Use 9:16. It is the ratio that fills the phone screen top to bottom, and Google Ads Help calls 9:16 vertical video “best suited for the Shorts format”. Square (1:1) and other vertical shapes such as 4:5 also count as Shorts, because YouTube’s rule is “square or vertical”. A frame wider than it is tall makes a regular video at any length.

The YouTube pages we read do not say how the Shorts player frames a square or 4:5 video on a phone. When the full screen matters, crop to 9:16 yourself, so you choose what is kept.

Slightly-off shapes need the same care. A phone screen recording is often taller than 9:16, and a custom editor canvas can end up a few pixels off. YouTube names no tolerance, so anything taller than it is wide still uploads as a Short, but scale or crop it to 1080 x 1920 for a predictable frame. For 16:9 uploads, see our guide to YouTube video size.

What resolution should you upload a Short at?

Upload at 1080 x 1920. In its steps for recording with the Shorts camera in the YouTube app, YouTube notes that “you can upload Short videos with a maximum resolution of 1080p”. The upload pages for Studio and the app give no resolution limit, so 1080p is the safe ceiling to plan for, and none of the pages says Shorts play above it.

For the rest of the export, YouTube’s recommended encoding settings apply: MP4 with H.264 video and AAC audio, at the frame rate you filmed. The bitrate table is written for 16:9 sizes, but 1080 x 1920 has the same pixel count as 1920 x 1080, so its 1080p figures (8 Mbps at 24 to 30 fps, 12 Mbps at 48 to 60) are a fair guide. At 8 Mbps plus 384 kbps stereo audio, our estimate for a 3-minute Short is about 190 MB.

Do not add black bars to fit another shape. YouTube’s resolution page says padding in the file “interferes with YouTube’s ability to change the player dynamically”.

What size is a YouTube Shorts thumbnail?

YouTube recommends a custom Shorts thumbnail of 2160 x 3840 pixels, a 9:16 image at least 640 pixels tall, saved as JPG or PNG. From a computer the file can be up to 50 MB. The thumbnail page asks for an image “as large as possible”, and gives 9:16 as the recommended ratio for uploaded Shorts thumbnails.

Where you add it matters more than the pixels. Custom Shorts thumbnails are “currently only available to add in YouTube Studio on a computer”, and only for a verified account. In Studio, select Content, then Shorts, open the Short and use Upload file below Thumbnail.

Without one, YouTube picks the thumbnail from the video, so give the Short a clear frame that works as a cover. Design the cover at 9:16: YouTube replaces a 16:9 custom thumbnail on a vertical video with an auto-generated 4:5 one on the home, explore and subscription pages.

Is there a safe zone for text on a YouTube Short?

YouTube does not publish a safe zone for regular Shorts. None of the YouTube Help pages we read gives margins for the title, channel name, buttons and caption shown over a Short in the feed. Google Ads Help offers safe-zone templates for vertical video ads, but only as images with no measurements in the text, and they describe ad overlays.

Treat any pixel safe zone quoted for Shorts as a third-party measurement. Keep headlines, prices and faces near the middle of the frame, and let backgrounds run to the edges.

The reliable check is the real one: upload the Short as private, watch it in the YouTube app on a phone, and see what the overlays cover before it goes public. Burned-in captions tend to sit low in the frame, so check those first.

How does PostNext handle YouTube Shorts?

PostNext uploads the video file as you exported it, without resizing or re-encoding it, so a 1080 x 1920 export reaches YouTube as 1080 x 1920. YouTube then decides whether it is a Short from its shape and length, as it does for an upload in Studio. A 16:9 file sent through PostNext stays a long-form video.

Before scheduling, PostNext checks that the YouTube post holds exactly one video and no images, a title of up to 100 characters without < or >, and an answer to whether the video is made for kids. A single file can be up to 500 MB, which holds a 3-minute Short at YouTube’s 1080p bitrates with room to spare.

PostNext does not set thumbnails, so add the 9:16 cover in YouTube Studio on a computer after the upload. YouTube in PostNext is open to a limited set of accounts while Google reviews the app, and for now every video goes up to YouTube as private: you change its visibility in YouTube Studio, which is also the moment for the phone check above.

The PostNext YouTube scheduler puts each Short on the same calendar as your other channels, as its own post with its own title, description and tags. To publish at a set time from YouTube itself, our guide to scheduling YouTube Shorts uses Studio’s Schedule option. The same vertical export often goes to Instagram too, covered in our guide to Instagram Reel size.

Frequently Asked Questions

What size should a YouTube Short be?

1080 x 1920 pixels, a 9:16 vertical frame, is the usual export and fills a phone screen. YouTube’s rule is only that a Short is square or vertical and up to 3 minutes long, so other vertical sizes also upload as Shorts.

What is the aspect ratio of YouTube Shorts?

9:16 fills the screen and is the ratio Google’s ad specs call best suited for Shorts. YouTube counts any square or vertical video of up to 3 minutes as a Short, so 1:1 and 4:5 also qualify. A 16:9 video stays a regular long-form video.

Does YouTube say Shorts must be 1080 x 1920?

No. YouTube’s creator help pages for Shorts give no pixel size, only the square or vertical shape and the 3-minute length. 1080 x 1920 appears in Google Ads Help as the recommended size for vertical video ads, and it is the usual export for a 9:16 Short.

What size is a YouTube Shorts thumbnail?

YouTube recommends 2160 x 3840 pixels, a 9:16 image at least 640 pixels tall, as a JPG or PNG of up to 50 MB from a computer. Custom Shorts thumbnails are added in YouTube Studio on a computer, and the account must be verified.

Can a YouTube Short be 4K?

YouTube’s help does not say Shorts can be 4K. Its Shorts camera steps say “You can upload Short videos with a maximum resolution of 1080p”, and no help page we read says Shorts play above 1080p. Export at 1080 x 1920 unless you need a 4K master for another use.

Sources

Summarize with
ChatGPT Gemini Claude Perplexity Grok

Chris

Head of Content at PostNext

Chris leads content and oversees development across the services this blog covers. The guides and tool comparisons here come out of the same decisions that shape what ships.

Follow along on Instagram at @postnextio for campaign breakdowns.

Read these next

Schedule Posts on All Social Platforms in Minutes

Stop juggling multiple apps and tabs. PostNext lets you plan, schedule, and publish content across all your social channels in minutes. Use AI to generate captions, hashtags, and optimize posting times automatically.

Get Started Today